The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Jan. 29, 2018
Globalfoundries Inc., Grand Cayman, KY;
Luke G. England, Saratoga Springs, NY (US);
GLOBALFOUNDRIES INC., Grand Cayman, KY;
Abstract
A 3D IC package includes a bottom die having a back interconnect side opposing a front device side, the back interconnect side having a plurality of bottom die interconnects extending thereto. A top die has a front device side opposing a back side, the front device side having a plurality of top die interconnects. An interposer includes a redistribution layer (RDL) between the bottom die and the top die, the RDL including a plurality of wiring layers extending from back side RDL interconnects thereof to front side RDL interconnects thereof. An under bump metallization (UBM) couples the back side RDL interconnects to the plurality of top die interconnects at a first location, and the front side RDL interconnects are coupled to the plurality of bottom die interconnects at a second location. The first location and second location may not overlap.