公开(公告)号：US20240063206A1

公开(公告)日：2024-02-22

申请号：US18497961

申请日：2023-10-30

Applicant: Advanced Micro Devices, Inc.

Inventor： John J. Wuu ,  Milind Bhagavat ,  Brett Wilkerson ,  Rahul Agarwal

IPC: H01L25/18 ,  H01L23/48 ,  H01L23/528 ,  H01L23/00

CPC classification number: H01L25/18 ,  H01L23/481 ,  H01L23/528 ,  H01L24/05 ,  H01L24/08 ,  H01L2224/0557 ,  H01L2224/08146

Abstract: Systems, apparatuses, and methods for routing traffic through vertically stacked semiconductor dies are disclosed. A first semiconductor die has a second die stacked vertically on top of it in a three-dimensional integrated circuit. The first die includes a through silicon via (TSV) interconnect that does not traverse the first die. The first die includes one or more metal layers above the TSV, which connect to a bonding pad interface through a bonding pad via. If the signals transferred through the TSV of the first die are shared by the second die, then the second die includes a TSV aligned with the bonding pad interface of the first die. If these signals are not shared by the second die, then the second die includes an insulated portion of a wafer backside aligned with the bonding pad interface.