FIRST LEVEL INTERCONNECT UNDER BUMP METALLIZATIONS FOR FINE PITCH HETEROGENEOUS APPLICATIONS

Register USPTO Patent
Application Number 17482275
Status Pending
Filing Date 2021-09-22
First Publication Date 2023-03-23
Publication Date 2023-03-23
Owner Intel Corporation (USA)
Inventor
  • He, Liang
  • Arafat, Yeasir
  • Han, Jung Kyu
  • Lehaf, Ali
  • Duan, Gang
  • Cho, Steve S.
  • Deng, Yue

Abstract

Embodiments disclosed herein include electronic packages with first level interconnects that comprise a first layer. In an embodiment, the electronic package comprises a package substrate and a pad on the package substrate. In an embodiment, the pad comprises copper. In an embodiment, a first layer is over the pad. In an embodiment, the first layer comprises iron. In an embodiment, a solder is over the first layer, and a die is coupled to the package substrate by the solder.

IPC Classes  ?

  • H01L 23/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details of semiconductor or other solid state devices
  • H01L 23/498 - Leads on insulating substrates
  • H01L 23/532 - Arrangements for conducting electric current within the device in operation from one component to another including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
  • H01L 23/528 - Layout of the interconnection structure