The technology disclosed herein provides a method to control the resources used in a device. An implementation of such a method includes generating a device configuration ledger block based on initial assembly of components of a storage device, storing the device configuration ledger block on a node of a distributed ledger, detecting an activation of the device; in response to detecting the activation of the device, generating a current distributed ledger block based on current assembly of components of the storage device, comparing the current distributed ledger block with the device configuration ledger block, and in response to determining that the current distributed ledger block does not match with the device configuration ledger block disabling the operation of the device.
G06F 21/57 - Certification ou préservation de plates-formes informatiques fiables, p.ex. démarrages ou arrêts sécurisés, suivis de version, contrôles de logiciel système, mises à jour sécurisées ou évaluation de vulnérabilité
H04L 9/32 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
2.
NEAR FIELD TRANSDUCERS (NFTS) INCLUDING BARRIER LAYER AND METHODS OF FORMING
Devices having an air bearing surfaces (ABS), the devices including a near field transducer (NFT) that includes a disc having a front edge; a peg, the peg having a front surface at the air bearing surface of the apparatus, an opposing back surface, a top surface that extends from the front surface to the back surface, two side surfaces that expend from the front surface to the back surface and a bottom surface that extends from the front surface to the back surface; and a barrier layer, the barrier layer separating at least the back surface of the peg from the disc and the barrier layer having a thickness from 10 nm to 50 nm.
G11B 5/60 - Maintien dynamique de l'écartement entre têtes et supports d'enregistrement à l'aide d'un fluide
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrement; Reproduction par des moyens magnétiques; Supports d'enregistrement correspondants
3.
NEAR FIELD TRANSDUCER (NFT) INCLUDING PEG AND DISC OF DIFFERENT MATERIALS
Devices having air bearing surfaces (ABS), the devices include a near field transducer (NFT) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein the disc includes a disc material and the peg includes a peg material, wherein the disc material is different from the peg material and wherein the disc material has a first real part of the permittivity and a peg material has a second real part of the permittivity and the second real part of the permittivity is not greater than the first real part of the permittivity.
G11B 5/60 - Maintien dynamique de l'écartement entre têtes et supports d'enregistrement à l'aide d'un fluide
G11B 5/127 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction
G11B 5/187 - Structure ou fabrication de la surface de la tête en contact physique avec le milieu d'enregistrement ou immédiatement adjacente à celui-ci; Pièces polaires; Entrefers
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
4.
DEVICES INCLUDING A NEAR-FIELD TRANSDUCER (NFT) INCLUDING PEG AND DISC FROM DIFFERENT MATERIALS
Devices that have an air bearing surface (ABS), the device includes a near field transducer (NFT) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein the disc includes a disc material that includes gold or an alloy thereof and the peg includes a peg material, wherein the disc material is different from the peg material and wherein the peg material has a real part of the permittivity that is not greater than that of gold.
G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 5/60 - Maintien dynamique de l'écartement entre têtes et supports d'enregistrement à l'aide d'un fluide
G11B 13/04 - Enregistrement utilisant simultanément ou sélectivement des procédés ou des moyens entrant dans des groupes principaux différents; Supports d'enregistrement correspondants; Reproduction simultanée ou sélective correspondante par procédé magnétique et procédé optique
Devices having air bearing surfaces (ABS), the devices including a near field transducer (NFT) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein at least one of a portion of the peg, a portion of the disc, or a portion of both the peg and the disc include a multilayer structure including at least two layers including at least one layer of a first material and at least one layer of a second material, wherein the first material and the second material are not the same and wherein the first and the second materials independently include aluminum (Al), antimony (Sb), bismuth (Bi), boron (B), barium (Ba), calcium (Ca), cerium (Ce), chromium (Cr), cobalt (Co), copper (Cu), erbium (Er), gadolinium (Gd), gallium (Ga), germanium (Ge), gold (Au), hafnium (Hf), indium (In), iridium (Ir), iron (Fe), lanthanum (La), magnesium (Mg), manganese (Mn), molybdenum (Mo), nickel (Ni), niobium (Nb), osmium (Os), palladium (Pd), platinum (Pt), rhenium (Re), rhodium (Rh), ruthenium (Ru), scandium (Sc), silicon (Si), silver (Ag), strontium (Sr), tantalum (Ta), thorium (Th), tin (Sn), titanium (Ti), vanadium (V), tungsten (W), ytterbium (Yb), yttrium (Y), zirconium (Zr), or combinations thereof.
G11B 5/60 - Maintien dynamique de l'écartement entre têtes et supports d'enregistrement à l'aide d'un fluide
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrement; Reproduction par des moyens magnétiques; Supports d'enregistrement correspondants
A near-field transducer includes first and second stacked base portions having a common outline shape. The second base portion is proximate a light delivery structure. A peg extends from the first base portion towards a media-facing surface. The peg includes a material that is more thermally robust than a plasmonic material of the base portion. The peg has a peg thickness that is less than a thickness of the first base portion. The first base portion has a first recess proximate the peg. The first recess separates the first base portion from the media-facing surface and exposes at least a top side of the peg.
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 5/60 - Maintien dynamique de l'écartement entre têtes et supports d'enregistrement à l'aide d'un fluide
G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrement; Reproduction par des moyens magnétiques; Supports d'enregistrement correspondants
7.
PROCEDURE FOR SETTING LASER AND HEATER POWER IN HAMR DEVICE
A heater power of a heat-assisted magnetic recording head is set to an initial power to induce an initial head-medium clearance. For a plurality of iterations, a heater power at an optimum laser power is determined that achieve a target clearance. If differences in the heater power and optimum laser power between the two subsequent iterations are below a threshold, the iterations are stopped and the heater power and the optimum laser power for one of the two subsequent iterations is used as an operational heater power and laser power for the heat-assisted magnetic recording head.
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 5/02 - Procédés d'enregistrement, de reproduction ou d'effacement; Circuits correspondants pour la lecture, l'écriture ou l'effacement
G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement
G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrement; Reproduction par des moyens magnétiques; Supports d'enregistrement correspondants
A data storage device testing system (100, 140) may be configured with at least a test slot (1 12, 148, 190), a loader assembly (106), and an exchange assembly ( 1 10, 160, 170). The loader assembly can be positioned to respectively engage and disengage a test deck (1 14, 206) with the test slot. The exchange assembly may be configured to open an access port portion (120, 230) of the test deck and subsequently replace a tested data storage component (122, 124, 238, 240, 242, 244, 246) housed within the test deck with an untested data storage component.
A testing system (100, 140, 230) that is capable of testing individual data storage components (112, 124) may have a testing assembly (112, 148, 190), a loader assembly (106) and an exchange assembly (110, 160). The testing assembly has a plurality of test slots (112, 148, 176) each having long and short axes. The loader assembly can be configured to transport and install a test deck (114, 180) or data storage device from the exchange assembly to a test slot of the plurality of test slots with a long axis (186) of the test deck continuously aligned with the long axis (188) of the test slot while being transported.
A magnetic recording head comprises a transducer, a heater, a writer and a laser. The transducer is configured to write to a magnetic recording medium during a write operation. The heater, writer and laser are configured to affect a protrusion of the transducer. The heater is calibrated to produce a pre -write heater power to obtain a target pre -write clearance for a write operation through use of a clearance-heater power curve. The curve is generated by measuring a clearance between the transducer and the medium as the heater is cycled from zero to a contact power.
G11B 13/08 - Enregistrement utilisant simultanément ou sélectivement des procédés ou des moyens entrant dans des groupes principaux différents; Supports d'enregistrement correspondants; Reproduction simultanée ou sélective correspondante utilisant des interactions ou des moyens de transduction en champ proche et au moins un autre procédé ou moyen pour l'enregistrement ou la reproduction
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 5/60 - Maintien dynamique de l'écartement entre têtes et supports d'enregistrement à l'aide d'un fluide
11.
COIL FILAMENT FOR PLASMA ENHANCED CHEMICAL VAPOR DEPOSITION SOURCE
A vapor deposition source that includes a substantially vertical plate (122) to which first and second filament posts (118 and 120) are coupled. The vapor deposition source also includes a filament (100B) having a first end (102B) and a second end (104B). The filament (100B) provides a substantially concentric source of electrons. The first end (102B) of the filament (100B) is connected to the first filament post (118) and the second end (104B) of the filament (100B) is connected to the second filament post (120). The first end (102B) of the filament (100B) is substantially vertically aligned with the second end (104B) of the filament (100B) when the filament (100B) is connected to the first and second posts (118 and 120).
C23C 16/50 - Revêtement chimique par décomposition de composés gazeux, ne laissant pas de produits de réaction du matériau de la surface dans le revêtement, c. à d. procédés de dépôt chimique en phase vapeur (CVD) caractérisé par le procédé de revêtement au moyen de décharges électriques
C23C 16/513 - Revêtement chimique par décomposition de composés gazeux, ne laissant pas de produits de réaction du matériau de la surface dans le revêtement, c. à d. procédés de dépôt chimique en phase vapeur (CVD) caractérisé par le procédé de revêtement au moyen de décharges électriques utilisant des jets de plasma
A high profile electrical connector is system compatible with first and second different DIMM electrical connectors in a system whereby another electrical connector that is not high profile is not system compatible with the first and second different DIMM electrical connectors in the system. The second DIMM electrical connector is taller than the first DIMM electrical connector, and is less expensive to manufacture than the first DIMM electrical connector.
H01R 13/514 - Socles; Boîtiers formés comme un bloc ou un assemblage modulaire, c. à d. composés de parties coopérantes pourvues de pièces de contact ou maintenant entre elles des pièces de contact
H01R 12/71 - Dispositifs de couplage pour circuits imprimés rigides ou structures similaires
A storage device includes a controller that implements an interlaced magnetic recording scheme with prioritized random access. According to one implementation, a controller is configured to write data at a first linear density to alternating data tracks and write data at a second linear density to one or more data tracks interlaced with the alternating data tracks.
A storage device includes a transducer head including a first write element configured to write data at a first write width and a second write element configured to write data at a second write width less than the first write width. According to one implementation, the first write element writes data at a first linear density and to alternating data tracks and the second write element writes data at a second linear density and to data tracks interlaced with the alternating data tracks.
A storage device controller addresses consecutively-addressed portions of incoming data to consecutive data tracks on a storage medium and writes the consecutively-addressed portions to the consecutive data tracks in a non-consecutive track order. In one implementation, the storage device controller reads the data back from the consecutive data tracks in a consecutive address order in a single sequential read operation.
G11B 5/596 - Disposition ou montage des têtes par rapport aux supports d'enregistrement comportant des dispositions pour déplacer la tête dans le but de maintenir l'alignement relatif de la tête et du support d'enregistrement pendant l'opération de transduction, p.ex. pour compenser les irrégularités de surface ou pour suivre les pistes pour suivre les pistes d'un disque
16.
METHODS AND APPARATUSES FOR DIRECTED SELF-ASSEMBLY
Provided herein is a method, including creating a first layer over a substrate, wherein the first layer is configured for directed self-assembly of a block copolymer thereover; creating a continuous second layer over the first layer by directed self-assembly of a block copolymer, wherein the second layer is also configured for directed self-assembly of a block copolymer thereover; and creating a third layer over the continuous second layer by directed self-assembly of a block copolymer. Also provided is an apparatus, comprising a continuous first layer comprising a thin film of a first, phase-separated block copolymer, wherein the first layer comprises a first chemoepitaxial template configured for directed self-assembly of a block copolymer thereon; and a second layer on the first layer, wherein the second layer comprises a thin film of a second, phase-separated block copolymer.
B82B 3/00 - Fabrication ou traitement des nanostructures par manipulation d’atomes ou de molécules, ou d’ensembles limités d’atomes ou de molécules un à un comme des unités individuelles
H01L 21/32 - Traitement des corps semi-conducteurs en utilisant des procédés ou des appareils non couverts par les groupes pour former des couches isolantes en surface, p.ex. pour masquer ou en utilisant des techniques photolithographiques; Post-traitement de ces couches; Emploi de matériaux spécifiés pour ces couches en utilisant des masques
G03F 7/26 - Traitement des matériaux photosensibles; Appareillages à cet effet
17.
DEVICES INCLUDING A NEAR FIELD TRANSDUCER (NFT) WITH NANOPARTICLES
Devices that include a near field transducer (NFT) including a crystalline plasmonic material having crystal grains and grain boundaries; and nanoparticles disposed in the crystal grains, on the grain boundaries, or some combination thereof, wherein the nanoparticles are oxides of, lanthanum (La), barium (Ba), strontium (Sr), erbium (Er), hafnium (Hf), germanium (Ge), or combinations thereof; nitrides of zirconium (Zr), niobium (Nb), or combinations thereof; or carbides of silicon (Si), aluminum (Al), boron (B), zirconium (Zr), tungsten (W), titanium (Ti), niobium (Nb), or combinations thereof.
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 13/08 - Enregistrement utilisant simultanément ou sélectivement des procédés ou des moyens entrant dans des groupes principaux différents; Supports d'enregistrement correspondants; Reproduction simultanée ou sélective correspondante utilisant des interactions ou des moyens de transduction en champ proche et au moins un autre procédé ou moyen pour l'enregistrement ou la reproduction
Devices that include a write pole; a near field transducer (NFT) that includes a peg and a disk, wherein the peg is at the ABS of the device; and a diffusion barrier layer positioned between the write pole and the peg of the NFT, the diffusion barrier layer including metals, nitrides, oxides, carbides, silicides, or amorphous material.
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 13/08 - Enregistrement utilisant simultanément ou sélectivement des procédés ou des moyens entrant dans des groupes principaux différents; Supports d'enregistrement correspondants; Reproduction simultanée ou sélective correspondante utilisant des interactions ou des moyens de transduction en champ proche et au moins un autre procédé ou moyen pour l'enregistrement ou la reproduction
A Bragg grating external cavity laser apparatus may comprise the combination of a slider and an external cavity laser. The slider includes a waveguide that delivers light to a recording media. The external cavity laser includes an active region with a reflective back facet and a front facet that is externally coupled to the waveguide of the slider. The external cavity laser additionally includes a Bragg grating within the waveguide of the slider where the reflective back facet and the Bragg grating operate to define a single resonator within the external cavity.
H01S 3/10 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p.ex. commutation, ouverture de porte, modulation ou démodulation
Provided herein is an apparatus that includes a body with a top surface and a recess in the top surface. The top surface, excluding the recess, is substantially planar. The recess is confined to an area that is defined by an inner diameter of the top surface of the body.
A method of controlling laser output in a heat assisted magnetic recording device (118) can be performed by control circuitry (102) in a data storage device. The method includes measuring (452) a temperature, measuring (454) laser output power of a laser, determining (456) a power error by subtracting an optimal laser output power from the measured laser output power and comparing (458, 460) the power error to at least one threshold to determine whether an applied current to the laser needs to be adjusted. The at least one threshold is related to how great the power error can be while maintaining the integrity of data on a recording medium.
Apparatus (400, 500) and method (200, 220, 240, 260, 280, 300) for detecting unauthorized tampering with a data storage device (100, 110, 140, 520). In some embodiments,the data storage device has a housing (112, 142) and a memory (192) supported by the housing. A first identifier value (202A, 222A, 242A, 262A, 282A, 306A) is stored on an external surface of the housing and a second identifier value (202B, 222B, 242B, 262B, 282B, 306B) is stored within the memory. A digital signature (210, 256, 296) generated in response to the first and second identifier values and in response to a private key (208, 254, 288) is stored on the storage device. Thereafter, the first identifier value is retrieved from the external surface of the housing and the second identifier value is retrieved from the memory. The storage device is authenticated using the retrieved first and second identifier values, the digital signature and a public key (228, 274, 312).
G06F 21/00 - Dispositions de sécurité pour protéger les calculateurs, leurs composants, les programmes ou les données contre une activité non autorisée
23.
APPARATUS AND METHODS FOR ALIGNED SERVO-RELATED FEATURES
Provided herein is an apparatus, including a first region of a substrate corresponding to a data region in a patterned recording medium; a first set of protrusions etched out of the first region of the substrate, wherein the protrusions of the first set of protrusions are rectangle shaped; a second region of the substrate corresponding to a servo region in a patterned recording medium; and a second set of protrusions etched out of the second region of the substrate, wherein the second set of protrusions includes radial lines etched into the substrate across chevrons etched out of the substrate.
G11B 5/596 - Disposition ou montage des têtes par rapport aux supports d'enregistrement comportant des dispositions pour déplacer la tête dans le but de maintenir l'alignement relatif de la tête et du support d'enregistrement pendant l'opération de transduction, p.ex. pour compenser les irrégularités de surface ou pour suivre les pistes pour suivre les pistes d'un disque
G11B 5/84 - Procédés ou appareils spécialement adaptés à la fabrication de supports d'enregistrement
24.
APPARATUS AND METHODS USING INTERFERENCE IN LIGHT REFLECTED FROM ARTICLES
Provided herein are apparatus and methods for inspecting articles for features using interference in light reflected from the articles. The interference may be used to detect, distinguish, and/or map features of articles, which features may include, but are not limited to, surface defects. In at least one embodiment, an apparatus and method includes conveying parallel light along a primary axis through a telecentric lens and a light-splitting device, respectively; illuminating a majority of a surface of an article with the parallel light; conveying reflected light from the surface of the article along the primary axis back through the light-splitting device and the telecentric lens, respectively; and recording interference resulting from a combination of light comprising at least the reflected light from the surface of the article.
G11B 19/04 - Dispositions prévenant, évitant ou signalant la surimpression sur le même support, ou d'autres fonctionnements défectueux de l'enregistrement ou de la reproduction
Provided herein is an apparatus including an imaging lens assembly configured to collect reflected light from a surface of an article; an image sensor configured to receive reflected light from the imaging lens assembly, wherein the imaging lens assembly and the image sensor are each arranged at different angles for focusing on substantially an entire surface of an article; and a processing means configured to process signals from the image sensor corresponding to polarized reflected light and subsequently generate one or more features maps.
A plasma etching source (122) installable into at least one of multiple compartments (102, 104, 106, 108, 110) of a sputter deposition tool (100). The plasma etching source (122) includes a first mounting plate (302) and at least one electrode plate (304) coupled to the first mounting plate (302). A gas inlet (308) is included in the first mounting plate (302) of the plasma etching source (122).
An apparatus having an interface to a plurality of memories and a circuit is disclosed. Each memory generally has a plurality of planes and is nonvolatile. The circuit is configured to (i) generate a plurality of codewords by encoding a plurality of data units, (ii) generate a plurality of slices by parsing the codewords, (iii) generate a plurality of pages by interleaving the slices and (iv) write the pages in parallel into respective ones of the planes.
G11C 16/26 - Circuits de détection ou de lecture; Circuits de sortie de données
G11C 16/34 - Détermination de l'état de programmation, p.ex. de la tension de seuil, de la surprogrammation ou de la sousprogrammation, de la rétention
28.
DEVICES INCLUDING MAGNETIC READ SENSOR AND SHIELDS
Devices having an air bearing surface (ABS), the device including a first read sensor; a first read sensor shield; and a first stray field shield, wherein the first read sensor shield is configured to shield at least the first read sensor from magnetic fields of the device, and the first stray field shield is configured to shield the first read sensor from stray environmental magnetic fields.
An apparatus includes a memory and a controller. The memory includes a plurality of memory devices. Each memory device has a plurality of page types. The plurality of page types are classified based on error rate variations. The controller may be configured to write user data and error-correction data to the memory. The user data and the error-correction data are organized as a super-page. The super-page includes a plurality of sub-pages. The plurality of sub-pages are written across the plurality of memory devices such that the plurality of sub-pages are stored using more than one of the plurality of page types.
A perpendicular magnetic recording medium (100) having a recording layer (108) with low exchange coupling. In some embodiments, the perpendicular magnetic recording medium is provided with a granular magnetic recording layer (114) comprising an alloy of cobalt (Co), platinum (Pt) and a platinum group metal element to decrease intra-layer exchange coupling between adjacent grains.
G11B 5/66 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant uniquement le matériau magnétique, sans produit de liaison les supports d'enregistrement étant constitués par plusieurs couches magnétiques
Systems and methods for binding shingled recording bands in data storage media (106), particularly devices employing shingled magnetic recording. In some embodiments, an apparatus (100) comprises a data storage medium (106, 402, 902) and a controller (206) configured to define boundaries (1104) of an area of the data storage medium based on a constraint and a list of defective sectors (1206).
G11B 20/12 - Mise en forme, p.ex. disposition du bloc de données ou de mots sur les supports d'enregistrement
G11B 27/32 - Indexation; Adressage; Minutage ou synchronisation; Mesure de l'avancement d'une bande en utilisant une information détectable sur le support d'enregistrement en utilisant des signaux d'information enregistrés par le même procédé que pour l'enregistrement principal sur des pistes auxiliaires séparées du même support d'enregistrement ou d'un support auxiliaire
Systems and methods for isolated bands of fractional tracks in a data storage memory (106), particularly memory employing shingled magnetic recording. In one embodiment, a data storage medium (402, 902) has a first data storage area with tracks (404) overlapped in a shingled manner. The first data storage area has a first circumferential portion of a track to store data. The data storage medium further has a second data storage area and a guard area (410) disposed between the first data storage area and the second data storage area. The guard area has a second circumferential portion of the track as a partial guard track.
Systems and methods for establishing dynamic band boundaries (200) in data storage devices (104), particularly devices employing shingled magnetic recording. Band boundaries (200) may be modified to incorporate spare sectors (602) from guard areas (410) between bands to achieve field defect-slipping. Band boundaries (200) can also be shifted to migrate spare sectors (602) from one guard area (410) to another in order to dynamically distribute spare sectors (602). In one embodiment, an apparatus may comprise a data storage medium (106) and a controller (206). The data storage medium (106) may have a first and second sequence of circumferentially adjacent data sectors (406), and a first guard area (410) disposed between the first (416) and second sequence (414) such that no sector of the first sequence (416) is directly adjacent to a sector of the second sequence (414). The controller (206) may be configured to restructure the first sequence (414) to incorporate a sector from the first guard area (410) to produce a shifted first sequence (416).
A mobile data storage device (102) may be housed in a mobile computing device (142) without an active cooling feature. The mobile data storage device (102) can have at least a controller (122) configured to delay command execution in response to a predicted mobile data storage device (102) temperature. The controller (122) can insert a plurality of delays into a command queue to prevent the mobile data storage device (102) from reaching the predicted mobile data storage device (102) temperature.
A data storage system (100) may be configured with at least a mobile data storage device (102) that consists of a rotating data storage medium and a controller (122). The controller (122) can alter a rotational speed of the data storage medium in response to a predicted change in a command queue. The mobile data storage device (102) may be configured without an active cooling feature.
A non-transitory computer-readable storage medium may include instructions that cause a system to perform operations, the operations may include receiving an operation associated with data and managing storage of the data on a first storage medium of an electronic device and in a cache on a second storage medium of the electronic device based on the operation and a cache policy. The cache policy may be based on one or more characteristics of the data that include a duration since a previous access of the data.
The embodiments disclose a patterned composite magnetic layer structure configured to use magnetic materials having differing temperature and magnetization characteristics in a recording device, wherein the patterned composite magnetic layer structure includes magnetic layers, at least one first magnetic material configured to be used in a particular order to reduce a recording temperature and configured to control and regulate coupling and decoupling of the magnetic layers and at least one second magnetic material with differing temperature characteristics is configured to control recording and erasing of data.
Disclosed herein is an apparatus that includes a fluid dynamic bearing defined in a gap between an inner component and an outer component. In some instances, the inner component and the outer component are configured for relative rotation. In some instances, the apparatus further includes a fluid reservoir configured to supply a fluid to the fluid dynamic bearing and the fluid reservoir is defined by shearless surfaces.
H02K 7/08 - Association structurelle avec des paliers
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p.ex. paliers hydrostatiques à coussinet d'air
Provided herein is an apparatus, including a stationary component and a rotatable component; a fluid between the stationary component and the rotatable component; a limiter shoulder of the stationary component; a flanged limiter bushing of the rotatable component; and a separating means for separating the limiter shoulder and the limiter bushing, wherein the separating means comprises the fluid.
A device including a magnetic structure, the magnetic structure having a substrate adjacent surface and a second, opposing surface, the magnetic structure having a near field transducer (NFT), wherein the NFT includes gold or an alloy thereof, and is positioned at the second surface an overcoat structure; and a film structure, the film structure positioned between the magnetic structure and the overcoat structure, the film structure having a total thickness of not greater than about 100 A, and the film structure including: a first interfacial structure having a first and a second opposing surface; a second interfacial structure having a first and a second opposing surface; and an intermediate structure wherein the first surface of the first interfacial structure is positioned adjacent the NFT of the magnetic structure, and the second surface of the second interfacial structure is positioned adjacent the overcoat structure, and the intermediate structure is positioned between the first interfacial structure and the second interfacial structure, and wherein the first interfacial structure includes one or more rare earth elements, one or more alkaline earth metals, one or more alkali metals, or a combination thereof.
G11B 5/31 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction utilisant des films minces
G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrement; Reproduction par des moyens magnétiques; Supports d'enregistrement correspondants
Alignment of read/write heads with the storage tracks in disk drive memory systems allows disks to be designed with greater track densities, thereby allowing smaller disks and/or increasing the storage capacity of the disks. Spindle motors having fluid dynamic bearings situated between, for example, a shaft and sleeve support a hub and disk for rotation, thereby assisting rotational accuracy. In fluid dynamic bearings, also referred to as hydrodynamic bearings, a lubricating fluid may be provided between a fixed member bearing surface and a rotating member bearing surface of the disk drive. Disk drive hydrodynamic bearings are sensitive, for example, to external loads and mechanical shock. As a result, the stiffness of the fluid dynamic bearing affects the support of a rotating load on the spindle during wobble or tilt.
G01B 5/14 - Dispositions pour la mesure caractérisées par l'utilisation de techniques mécaniques pour mesurer une distance ou une marge entre des objets ou des ouvertures espacés
G01B 21/16 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la distance ou le jeu entre des objets espacés
Provided herein, is an apparatus that includes a stationary component, a rotatable component, and an upper journal bearing and a lower journal bearing. The upper journal bearing and the lower journal bearing are defined in a gap between the stationary component and the rotatable component, and the stationary component and rotatable component are configured for relative rotation. A thrust bearing is disposed between the upper journal bearing and the lower journal bearing.
An apparatus includes a rechargeable battery, a circuitry, and a controller. The circuitry is operable to receive power from a power source and to provide power to the rechargeable battery and to other electrical components of the apparatus. The controller is configured to monitor power requirements of the apparatus. Moreover, the controller is further configured to provide power from the rechargeable battery in addition to power supplied from the power source during a peak power event of the apparatus.
Provided herein is an apparatus, including a photon emitting means configured to emit photons onto a surface of an article at a number of azimuthal angles; and a processing means configured to process photon-detector-array signals corresponding to photons scattered from surface features of the article and generate one or more surface features maps for the article from the photon-detector-array signals corresponding to the photons scattered from the surface features of the article.
G01N 21/47 - Dispersion, c. à d. réflexion diffuse
G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
G01B 11/24 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes
G01B 11/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la rugosité ou l'irrégularité des surfaces
Provided herein is an apparatus, including at least two photon emitters, each with a preselected polarization orientation, and configured to emit polarized photons onto a surface of an article, and a processing means configured to process photon-detector-array signals corresponding to photons scattered from surface features of the article, and generate one or more surface features maps for the article from the photon-detector-array signals corresponding to the photons scattered from the surface features of the article.
G01N 21/47 - Dispersion, c. à d. réflexion diffuse
G01N 21/27 - Couleur; Propriétés spectrales, c. à d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en utilisant la détection photo-électrique
G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
G01B 11/24 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes
G01B 11/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la rugosité ou l'irrégularité des surfaces
Provided herein is an apparatus, including a mapping means for generating a map of locations of surface features of an article based on photon-detector signals corresponding to photons scattered from the surface features of the article, and a surface feature manager. The surface manager is configured to locate a predetermined surface feature of the surface features of the article based, at least in part, on the map of the surface features locations, irradiate photons of a first power onto the location of the predetermined surface feature to analyze the predetermined surface feature, and irradiate photons of a second power onto the location of the predetermined surface feature to remove the predetermined surface feature.
G01N 21/47 - Dispersion, c. à d. réflexion diffuse
G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
G01B 11/24 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes
G01B 11/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la rugosité ou l'irrégularité des surfaces
Provided herein in an apparatus, including a substrate; a functional layer, wherein the functional layer has a composition characteristic of a workpiece of an analytical apparatus; and pre-determined features configured to calibrate the analytical apparatus. Also provided herein is an apparatus, including a functional layer overlying a substrate; and pre-determined features for calibration of an analytical apparatus configured to measure the surface of a workpiece, wherein the functional layer has a composition similar to the workpiece. Also provided herein is a method, including providing a lithographic calibration standard having a functional layer to an analytical apparatus, wherein the functional layer has a composition characteristic of a workpiece of the analytical apparatus; providing calibration standard specifications to a computer interfaced with the analytical apparatus; and calibrating the analytical apparatus in accordance with calibration standard readings and the calibration standard specifications.
An apparatus is provided that includes a waveguide adjacent an air bearing surface, a near-field transducer comprising a peg having a side orthogonal to the air bearing surface and a write pole adjacent to the waveguide. The write pole includes a first portion extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface, and a second portion in contact with the first portion comprising a side that extends towards and orthogonally contacts the air bearing surface. The second portion or the write pole defines a gap between the side of the peg orthogonal to the air bearing surface and the side of the second portion of the write pole that extends towards and orthogonally contacts the air bearing surface. A method of making a magnetic recording head that includes the provided apparatus is also disclosed.
G11B 13/08 - Enregistrement utilisant simultanément ou sélectivement des procédés ou des moyens entrant dans des groupes principaux différents; Supports d'enregistrement correspondants; Reproduction simultanée ou sélective correspondante utilisant des interactions ou des moyens de transduction en champ proche et au moins un autre procédé ou moyen pour l'enregistrement ou la reproduction
Provided herein is an apparatus, including an inner component, wherein the inner component includes a thrust plate; an outer component, wherein the inner component and the outer component are positioned for relative rotation, and wherein the inner component and the outer component are positioned to form at least one bearing having a groove pattern that imparts a predetermined direction to the rotational motion of the inner component and the outer component; and a gas inlet operable to receive a pressurized gas.
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p.ex. paliers hydrostatiques à coussinet d'air
F16C 27/00 - Paliers ou supports de paliers élastiques ou extensibles pour mouvement de rotation exclusivement
An apparatus for charging of a rechargeable battery. The apparatus includes a rechargeable battery, a controller and a circuitry. The circuitry is operable to receive power from a power source. The circuitry is configured to provide power to the rechargeable battery and to other components. The controller is configured to control the circuitry to increase power to the rechargeable battery in response to a decrease in power consumption associated with the other components.
H01M 10/46 - Accumulateurs combinés par structure avec un appareil de charge
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p.ex. le niveau ou la densité de l'électrolyte
A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.
A laser diode includes a substrate and a junction layer disposed on the substrate. The junction layer forms a quantum well of the laser diode. The laser diode includes a junction surface having at least one channel that extends through the junction layer to the substrate. The at least one channel defines an anode region and a cathode region. A cathode electrical junction is disposed on the junction surface at the cathode region, and an anode electrical junction is disposed on the junction surface and coupled to the junction layer at the anode region. A cathode metal layer is disposed in at least a trench region of the channel. The cathode metal layer couples the substrate to the cathode electrical junction.
The embodiments disclose a data storage device including a thickness gradient heat sink layer deposited over a heat sink layer deposited over a substrate, a thickness gradient non-magnetic thermal resist layer deposited over the thickness gradient heat sink layer, and a magnetic layer deposited over the thickness gradient non-magnetic thermal resist layer.
In various embodiments and/or usage scenarios, device power control, such as relating to one or more power control commands, requests to transition operation to a specific power mode, and/or device power management commands, is advantageous and improves one or more of: performance, reliability, unit cost, and development cost of one or more devices, such as storage devices (e.g. a Solid-State Disk (SSD)) or systems including same.
A magnetic stack includes a substrate and a magnetic recording layer disposed over the substrate. The magnetic recording layer comprises magnetic crystalline grains and a segregant disposed between grain boundaries of the crystalline grains. One or both of the magnetic crystalline grains and the segregant are doped with a rare earth or transition metal dopant in an amount that provides the magnetic recording layer with a magnetic damping value, a, between about 0.1 to about 1.
G11B 5/65 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant uniquement le matériau magnétique, sans produit de liaison caractérisé par sa composition
G11B 5/66 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant uniquement le matériau magnétique, sans produit de liaison les supports d'enregistrement étant constitués par plusieurs couches magnétiques
Apparatus ( 102) for recording data and method for making the same. In accordance with some embodiments, a magnetic layer (128) is supported by a substrate (122) and comprises a magnetic material, a non-magnetic material, and an energy assisted segregation material. The segregation material enhances segregation of the non-magnetic material into grain boundaries within the layer at an elevated, moderate energy level.
A magnetic write head is disclosed that includes a slider that includes a laser diode having a light-emitting edge or surface of a laser diode and an optical waveguide. The disclosed magnetic write head also includes a dielectric layer disposed in a gap between the laser diode and an input to the optical waveguide. The dielectric layer fills the gap completely and provides a low-loss optical pathway for the laser diode to the input of the optical waveguide. Also disclosed is a method that includes spinning on a dielectric in a gap between the light-emitting surface and the optical waveguide coupler, wherein after the spinning on, the laser diode is optically coupled to the optical waveguide coupler through the dielectric.
G11B 21/21 - Supports de têtes; Supports des douilles pour les têtes embrochables agissant pendant que la tête est en position de travail, mais immobile, ou permettant de petits déplacements pour suivre les irrégularités de la surface du support d'enregistrement avec des dispositions pour maintenir un écartement désiré entre la tête et le support d'enregistrement, p.ex. maintien dynamique de l'écartement à l'aide d'un fluide, à l'aide d'un coulisseau
G11B 5/127 - Structure ou fabrication des têtes, p.ex. têtes à variation d'induction
In accordance with one embodiment, an apparatus is disclosed that comprises a submount operable to integrate with a laser as a laser submount assembly; a predetermined portion of the submount configured to bond with the laser; a bonding pad positioned on the predetermined portion of the submount for integrating the laser with the submount.
A method of forming a layer, the method including providing a substrate having at least one surface adapted for deposition thereon; and directing a particle beam towards the surface of the substrate, the particle beam including small molecule molecular species, wherein the small molecule molecular species break apart upon interaction with atoms at the substrate into atomic components, each of the atomic components having implant energies from about 20 eV to about 100 eV to form a layer.
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
H01J 37/317 - Tubes à faisceau électronique ou ionique destinés aux traitements localisés d'objets pour modifier les propriétés des objets ou pour leur appliquer des revêtements en couche mince, p.ex. implantation d'ions
A method of forming a layer, the method including providing a substrate having at least one surface adapted for forming a layer thereon; directing a particle beam towards the surface of the substrate, the particle beam including particles, wherein the particle beam has an angle of incidence with respect to the substrate, and is configured so that the particles have implant energies that are not greater than about 100 eV; changing the angle of incidence of the particle beam, the implant energy of the particles, or a combination thereof; and directing the particle beam towards the surface of the substrate a subsequent time, wherein the particles of the particle beam form a layer on the substrate.
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
H01J 37/317 - Tubes à faisceau électronique ou ionique destinés aux traitements localisés d'objets pour modifier les propriétés des objets ou pour leur appliquer des revêtements en couche mince, p.ex. implantation d'ions
C23C 14/22 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le procédé de revêtement
When opaque films are deposited on semi-conductor wafers, underlying alignment marks 106, 108 may be concealed. The re-exposure of such alignment marks 106, 108 is one source of resulting surface topography. In accordance with one implementation, alignment marks 106,108 embedded in a wafer 102 may be exposed by removing material from one or more layers and by replacing such material with a transparent material. In accordance with another implementation, the amount of material removed in an alignment mark recovery process may be mitigated by selectively ashing or etching above a stop layer.
A system that includes an ion source, the ion source configured to produce ions having a first energy; an extractor to extract the ions; an accelerator configured to accelerate the ions; a focusing and steering device configured to focus and/or steer the accelerated ions; and a decelerator configured to decelerate the accelerated ions so that the ions have a second energy when they impact a substrate, wherein the second energy is less than the first energy.
H01J 37/317 - Tubes à faisceau électronique ou ionique destinés aux traitements localisés d'objets pour modifier les propriétés des objets ou pour leur appliquer des revêtements en couche mince, p.ex. implantation d'ions
H01J 37/04 - Dispositions des électrodes et organes associés en vue de produire ou de commander la décharge, p.ex. dispositif électronoptique, dispositif ionoptique
Provided herein is an apparatus comprising a photon detecting array configured to take images of an article, and a mount configured to mount and translate the article in a direction by a sub-pixel distance. In some embodiments, the sub-pixel distance is based on a pixel size of the photon detecting array.
Provided herein is an apparatus, including a photon emitter configured for emitting photons onto a surface of an article; a first reflective surface and a second reflective surface configured to reflect the photons onto the surface of the article; and a processing means configured for processing signals from a photon detector array corresponding to photons scattered from surface features of the article.
G01B 11/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la rugosité ou l'irrégularité des surfaces
G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
66.
PROTECTIVE OVERCOAT LAYER OF CARBON AND A SELECTED TRANSITION METAL
Apparatus (102, 132, 140) for recording data and method (200) for making the same. In accordance with some embodiments, a magnetic recording layer (148) is adapted to store data along perpendicular magnetic domains. A protective overcoat layer ( 150) is formed on the magnetic recording layer (148) to substantially protect the magnetic recording layer (148) from environmental effects. The protective overcoat layer (150) is made of carbon intermixed with at least one transition metal, such as but not limited to chromium.
Articles that include a magnetic structure; an intermediate layer, the intermediate layer positioned on the magnetic structure, the intermediate layer having a thickness from about 3 Å to about 50 Å, the intermediate layer including a bottom interface layer, the bottom interface layer positioned adjacent the magnetic structure, the bottom interface layer including atoms of a metal bonded to atoms, compounds, or both of the magnetic structure; an interlayer, the interlayer positioned on the bottom interface layer, the interlayer including oxides of the metal; and a top interface layer, the top interface layer positioned adjacent the interlayer, the top interface layer including atoms of the metal, oxides of the metal, or some combination thereof bonded to atoms or compounds of the adjacent overcoat layer; and an overcoat layer, the overcoat layer positioned on the top interface layer of the intermediate layer.
Provided herein is an apparatus, comprising a first photon emitter configured to emit photons into an article from a circumferential edge of the article, and a photon detector array configured to detect photons scattered from features of the article.
Provided herein is an apparatus, including a photon emitter configured to emit photons onto a surface of an article, a photon detector array configured to receive photons from surface features of the article; and a processing means configured for processing photon-detector-array signals corresponding to photons scattered from the surface features and photons fluoresced from the surface features, wherein the processing means is further configured for classifying the surface features of the article.
Provided herein is an apparatus, including an optical characterization device; a photon detector array configured to sequentially receive a first set of photons scattered from surface features of an article and a second set of photons scattered from surface features of the article and subsequently processed by the optical characterization device; and a chemical characterization means for chemically characterizing the surface features of the article, wherein the chemical characterization means is configured for processing the first set of photons received by the photon detector array and the second set of photons received by the photon detector array.
A magnetic stack includes a substrate, a magnetic recording layer, and a TiN-X layer disposed between the substrate and the magnetic recording layer. In the TiN-X layer, X is a dopant comprising at least one of MgO, TiO, Ti02, ZrN, ZrO, Zr02, HfN, HfO, A1N, and A1203.
An apparatus includes a hub, a first disk, a second disk, and a spacer. The hub is supported for relative rotation about a stationary component. The first disk is mounted to the hub with a first dynamic resonance mode associated therewith. The second disk is mounted to the hub with a second dynamic resonance mode associated therewith. The spacer is positioned between the first disk and the second disk, wherein the spacer is operable to cause the first dynamic resonance mode to be different from the second dynamic resonance mode.
Higher-level redundancy information computation enables a Solid-State Disk (SSD) controller to provide higher-level redundancy capabilities to maintain reliable operation in a context of failures of non-volatile (e.g. flash) memory elements during operation of an SSD implemented in part by the controller. For example, a first computation is an XOR, and a second computation is a weighted-sum. Various amounts of storage are dedicated to storing the higher-level redundancy information, such as amounts equivalent to an integer multiple of flash die (e.g. one, two, or three entire flash die), and such as amounts equivalent to a fraction of a single flash die (e.g. one-half or one-fourth of a single flash die).
G06F 11/08 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p.ex. en utilisant des codes de contrôle
G06F 12/00 - Accès à, adressage ou affectation dans des systèmes ou des architectures de mémoires
G11C 29/42 - Dispositifs de vérification de réponse utilisant des codes correcteurs d'erreurs [ECC] ou un contrôle de parité
Provided herein is an apparatus, including a photon detector array configured to receive photons scattered from features in a surface of an article; and a characterization means for characterizing the features in the surface of the article, wherein the characterization means contrasts signals from the photon detector array corresponding to two sets of photons scattered from features in the surface of the article, and the two sets of photons respectively originate from photon emitters at different locations.
A Solid-State Disk (SSD) controller performs soft-decision decoding with a single read, thus improving performance, power, and/or reliability of a storage sub-system, such as an SSD. In a first aspect, the controller generates soft-decision metrics from channel parameters of a hard decode read, without additional reads and/or array accesses. In a second aspect, the controller performs soft decoding using the generated soft-decision metrics. In a third aspect, the controller generates soft-decision metrics and performs soft decoding with the generated soft-decision metrics when a hard decode read error occurs.
G11C 16/34 - Détermination de l'état de programmation, p.ex. de la tension de seuil, de la surprogrammation ou de la sousprogrammation, de la rétention
G11C 16/06 - Circuits auxiliaires, p.ex. pour l'écriture dans la mémoire
76.
MIXED GRANULARITY HIGHER-LEVEL REDUNDANCY FOR NON-VOLATILE MEMORY
Mixed-granularity higher-level redundancy for NVM provides improved higher-level redundancy operation with better error recovery and/or reduced redundancy information overhead. For example, pages of the NVM that are less reliable, such as relatively more prone to errors, are operated in higher-level redundancy modes having relatively more error protection, at a cost of relatively more redundancy information. Concurrently, blocks of the NVM that are more reliable are operated in higher-level redundancy modes having relatively less error protection, at a cost of relatively less redundancy information. Compared to techniques that operate the entirety of the NVM in the higher-level redundancy modes having relatively less error protection, techniques described herein provide better error recovery. Compared to techniques that operate the entirety of the NVM in the higher-level redundancy modes having relatively more error protection, the techniques described herein provide reduced redundancy information overhead.
G06F 11/08 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p.ex. en utilisant des codes de contrôle
G06F 12/00 - Accès à, adressage ou affectation dans des systèmes ou des architectures de mémoires
The embodiments disclose a method for an electron curing reverse-tone process, including depositing an etch-resistant layer onto a patterned imprinted resist layer fabricated onto a hard mask layer deposited onto a substrate, curing the etch-resistant layer using an electron beam dose during etching processes of imprinted pattern features into the hard mask and into the substrate and using analytical processes to quantify reduced pattern feature placement drift errors and to quantify increased pattern feature size uniformity of imprinted pattern features etched.
Resist imprinting void reduction method may include sealing a chamber. The chamber may be filled with an ambient inert gas, wherein the inert gas a solubility in a resist layer on a substrate greater than Helium. The method may also include establishing a pressure within the chamber sufficient to cause absorption of the ambient inert gas by the resist layer, and sufficient to suppress evaporation of the resist layer.
B29C 59/02 - Façonnage de surface, p.ex. gaufrage; Appareils à cet effet par des moyens mécaniques, p.ex. par pressage
B82B 3/00 - Fabrication ou traitement des nanostructures par manipulation d’atomes ou de molécules, ou d’ensembles limités d’atomes ou de molécules un à un comme des unités individuelles
Provided herein is an apparatus, including a photon emitting means for emitting photons onto a surface of an article, a photon detecting means for detecting photons scattered from features in the surface of the article; and a mapping means for mapping the features in the surface of the article, wherein the apparatus is configured to process more than one article every 100 seconds.
An SSD controller maintains a zero count and a one count, and/or in some embodiments a zero/one disparity count, for each read unit read from an SLC NVM (or the lower pages of an MLC). In an event that the read unit is uncorrectable in part due to a shift in the threshold voltage distributions away from their nominal distributions, the maintained counts enable a determination of a direction and/or a magnitude to adjust a read threshold to track the threshold voltage shift and restore the read data zero/one balance. In various embodiments, the adjusted read threshold is determined in a variety of described ways (counts, percentages) that are based on a number of described factors (determined threshold voltage distributions, known stored values, past NVM operating events). Extensions of the forgoing techniques are described for MLC memories.
G11C 29/00 - Vérification du fonctionnement correct des mémoires; Test de mémoires lors d'opération en mode de veille ou hors-ligne
G11C 16/06 - Circuits auxiliaires, p.ex. pour l'écriture dans la mémoire
G11C 16/34 - Détermination de l'état de programmation, p.ex. de la tension de seuil, de la surprogrammation ou de la sousprogrammation, de la rétention
An approach for characterizing an optical near field transducer (NFT) involves providing excitation radiation to the NFT. The NFT emits photolummescent radiation in response to the excitation radiation. The output radiation from the NFT is filtered so that a portion of the photolummescent radiation emitted by the NFT passes through the filter and the excitation radiation is substantially blocked. A detector detects the portion of photolummescent radiation and outputs an electrical signal in response to detection of the portion of photolummescent radiation.
Disclosed herein is an apparatus that includes a near field transducer positioned adjacent to an air bearing surface of the apparatus; a first magnetic pole; and a heat sink positioned between the first magnetic pole and the near field transducer, wherein the heat sink includes a first and second portion, with the first portion being adjacent the near field transducer and the second portion being adjacent the first magnetic pole, the first portion including a plasmonic material, and the second portion including a diffusion blocking material.
A flex circuit (140) including a multiple layer structure is disclosed. The multiple layered structure includes a first or base layer (180) and a second top layer (182). Top traces and bond pads (214) are fabricated on the top or obverse layer (182) and interlayer traces and bond pads (216) are fabricated between the first and second layers (180, 182) to provide an electrical interconnect to electrical components on a head assembly. In an illustrated embodiment, the flex circuit includes portions including the first or base layer (180) and the second or top layer (182) and one or more reduced thickness portion including the first or base layer (180) and not the second layer (182). In one embodiment, the gimbal portion of the flex circuit includes the first layer or base layer (180) and not the second layer (182) of the multiple layer structure and in another embodiment a bending portion of the flex circuit includes the first base layer (180) and not the second layer (180, 182) of the multiple layered structure to provide a reduced thickness to facilitate bending, for example in a micro-actuation region of the load beam.
A flex circuit including a dual sided interconnect structure to connect electrical components on a head or suspension assembly to head circuitry is described. The dual sided interconnect structure described has application for providing an electrical connection to one or more transducer elements on a slider (150) and one or more elements of a heat assisted magnetic recording HAMR unit (162). In an illustrated embodiment, a flexible structure or insulating base layer includes one or more slider and heat assisted magnetic recording traces (180, 182) coupled to one or more slider or HAMR bond pads (170-1 through 170-8 and 172-1 through 172-2) on an interconnect portion. As disclosed, the slider bond pads (170-1 through 170-8) are on the obverse side (190) of the flexible structure and the HAMR bond pads (172-1 through 172-2) include a reverse side bonding surface (192) to form reverse side bond pads to connect to one or more electrical or heating elements on the HAMR unit (162).
A wafer is formed having a plurality of laser-to-slider submount features on a first surface. An etching process is used to form scribe lines between the submounts on the first surface of the wafer. The wafer is separated at the scribe lines to form the submounts.
H01S 5/02 - Lasers à semi-conducteurs - Détails ou composants structurels non essentiels au fonctionnement laser
G11B 7/12 - Têtes, p.ex. formation du spot du faisceau lumineux ou modulation du faisceau lumineux
H01L 21/78 - Fabrication ou traitement de dispositifs consistant en une pluralité de composants à l'état solide ou de circuits intégrés formés dans ou sur un substrat commun avec une division ultérieure du substrat en plusieurs dispositifs individuels
Magnetic write heads for heat-assisted magnetic recording (HAMR) are disclosed that include a laser diode having a light emitting edge or surface mounted on a slider, an optical waveguide, and a printed bonding agent disposed in an air gap between the laser diode and the slider. The printed bonding agent can be applied by ink jet printing or aerosol jet printing.
A near-field transducer includes a core having at least two non-parallel surfaces. An outer conformal layer of plasmonic material encompasses the at least two surfaces of the core structure. The core is formed of a material that provides higher mechanical stability at elevated temperature than the plasmonic material. The core structure may be formed of a non-magnetic material of low-solubility in the plasmonic material. Alternatively, an inner conformal layer may be formed between the core and the outer conformal layer.
In accordance with one embodiment, a method is disclosed that comprises disposing an antireflection material (325) in juxtaposition with a top surface of a slider (320). In accordance with another embodiment, a method is disclosed that comprises disposing an antireflective material between a facet edge (331) of a laser (330) and an incident surface of a waveguide (332). In yet another embodiment, an apparatus is disclosed that comprises a slider and an antireflection material in juxtaposition with a top surface of the slider.
An apparatus that includes a near field transducer, the near field transducer including silver (Ag) and at least one other element or compound, wherein the at least one other element or compound is selected from: copper (Cu), palladium (Pd), gold (Au), zirconium (Zr), zirconium oxide (ZrO), platinum (Pt), geranium (Ge), nickel (Ni), tungsten (W), cobalt (Co), rhodium (Rh), ruthenium (Ru), tantalum (Ta), chromium (Cr), aluminum (Al), vanadium (V), iridium (Ir), titanium (Ti), magnesium (Mg), iron (Fe), molybdenum (Mo), silicon (Si), or combinations thereof; oxides of V, Zr, Mg, calcium (Ca), Al, Ti, Si, cesium (Ce), yttrium (Y), Ta, W or thorium (Th), Co, or combinations thereof; or nitrides of Ta, Al, Ti, Si, indium (In), Fe, Zr, Cu, W, boron (B), halfnium (Hf), or combinations thereof.
An apparatus includes a near-field transducer at or near an air bearing surface of the apparatus. A write pole is disposed at or near the air bearing surface and proximate the near-field transducer, respectively. A thermal sensor is disposed at the air bearing surface and within a protrusion region of the air bearing surface defined relative to at least one of the near-field transducer and the write pole. The thermal sensor is configured to produce a signal indicative of a temperature at the protrusion region.
A device including a near field transducer (NFT); a write pole; at least one dielectric material positioned between the NFT and the write pole; and an adhesion layer positioned between the NFT and the at least one dielectric material.
Provided herein is an apparatus, having a cylindrical structure extending from a base; a stator assembly having a stator ring and a plurality of stator teeth extending from an outer diameter of the stator ring; and a stator assembly support having a supporting means for supporting at least one of the stator ring or the plurality of stator teeth, wherein the stator assembly support is configured to dampen mechanical vibrations in the base.
In many thin film applications, surfaces upon which layers are to be formed may include several different materials, some electrically insulating and some electrically conducting; and/or several different topographies. Such surfaces can influence charging effects of the surface and thereby cause different and perhaps unknown interactions with an incoming particle beam containing charged particles. Currently utilized processes merely compensate for the charged particles making up the beam by combining an electron beam with the ion beam, thereby seeking to have a net charge of zero.
C23C 14/00 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement
C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
C23C 14/22 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le procédé de revêtement
H01J 37/317 - Tubes à faisceau électronique ou ionique destinés aux traitements localisés d'objets pour modifier les propriétés des objets ou pour leur appliquer des revêtements en couche mince, p.ex. implantation d'ions
A method of forming a layer, the method including providing a substrate having at least one surface adapted for deposition thereon; and directing a particle beam towards the surface of the substrate, the particle beam including moderately charged ions (MCIs), substantially all the MCIs independently have charges from ± 2 to ± 6 and kinetic energies of not greater than about 200 eV, wherein the MCIs do not penetrate more than about 30 Å into the surface of the substrate to form a layer on the substrate.
The embodiments disclose a method of surface tension control to reduce trapped gas bubbles in an imprint including modifying chemistry aspects of interfacial surfaces of an imprint template and a substrate to modify surface tensions, differentiating the interfacial surface tensions to control interfacial flow rates of a pre-cured liquid resist and controlling pre-cured liquid resist interfacial flow rates to reduce trapping gas and prevent trapped gas bubble defects in cured imprinted resist.
In certain embodiments, a method includes positioning a tolerance ring (102) between a bearing assembly (100) and an actuator arm (104). The tolerance ring (102) is compressed so that the tolerance ring buckles at predetermined weak points (106) to position the bearing assembly (100) relative to the actuator arm. In certain embodiments, an assembly includes a tolerance ring (102) buckle-fitted between first (100) and second (104) annular surfaces, the tolerance ring (102) buckled at designated weak points (106) to position the first annular surface (100) to the second annular surface (104).
F16C 35/02 - Supports rigides de paliers; Corps de paliers, p.ex. calottes, couvercles dans le cas de paliers à contact lisse
F16D 1/08 - Accouplements pour établir une liaison rigide entre deux arbres coaxiaux ou d'autres éléments mobiles d'une machine pour montage d'un organe sur un arbre ou à l'extrémité d'un arbre avec moyeu et clavette longitudinale
G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement
97.
RECORDING MEDIUM WITH THIN STABILIZATION LAYER HAVING HIGH MAGNETIC SATURATION AND ANISOTROPIC FIELD CHARACTERISTICS
A perpendicular recording medium (102, 200, 300) with enhanced magnetic stability. In accordance with some embodiments, a multi-layer recording structure (204, 304, 306, 308) is formed on a base substrate (202, 302) and adapted to magnetically store a magnetic bit sequence in domains substantially perpendicular to said layers. A thin magnetic stabilization layer (206, 310) is formed on the multi-layer recording substrate to magnetically stabilize an upper portion of the recording structure.
G11B 5/66 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant uniquement le matériau magnétique, sans produit de liaison les supports d'enregistrement étant constitués par plusieurs couches magnétiques
G11B 5/62 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié
A system and method for optical calibration discs includes dispensing a resist layer on a portion of a substrate. A surface of the substrate and a topographically patterned surface of predetermined objects of a template are contacted together, wherein the contacting causes the resist layer between the portion of the substrate and the template to conform to the topographically patterned surface, and the resist layer includes nano-scale voids. The nano- scale voids are reduced by longer spread time, thinner resist, and removal of the residual resist layer together with the voids by using a descum step. The resist layer is hardened into a negative image of the topographically patterned surface, wherein the negative image includes surfaces that are operable to be individually measured by an optical reader. The substrate and the template are separated, wherein the resist layer adheres to the surface of the substrate.
A sputtering apparatus includes a template having cells. Removable inserts are disposed within the cells. The cells may be circular, triangular, square, diamond shaped, or hex shaped. The removable inserts may be magnetic or non-magnetic inserts. A cover is connected with a first side of the template. A yoke is connected with a second side of the template. The removable inserts are operable to customize or shape a magnetic field over a target. The yoke is operable to provide a return path for the magnetic field.
A perpendicular magnetic recording stack (104) with a dual continuous layer and a method of manufacturing the same. The perpendicular magnetic recording stack includes a substrate (106), one or more magnetic granular recording layers (110), and a dual continuous layer having first and second continuous layers (112, 114). The first continuous layer (112), disposed between the second continuous layer (114) and the magnetic granular recording layers, has an intermediate lateral exchange coupling, which is higher than the lateral exchange coupling of the magnetic granular layers. The second continuous layer has a higher lateral exchange coupling than the first continuous layer.
G11B 5/66 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant uniquement le matériau magnétique, sans produit de liaison les supports d'enregistrement étant constitués par plusieurs couches magnétiques
brevets
