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:
Nov. 03, 2026
Filed:
Nov. 17, 2023
Globalfoundries U.s. Inc., Malta, NY (US);
Judson R. Holt, Ballston Lake, NY (US);
Crystal R. Kenney, Waterford, NY (US);
Vibhor Jain, Clifton Park, NY (US);
John J. Pekarik, Underhill, VT (US);
Mona Nafari, Clifton Park, NY (US);
Jeffrey B. Johnson, North Hero, VT (US);
GlobalFoundries U.S. Inc., Malta, NY (US);
Abstract
The present disclosure relates to semiconductor structures and, more particularly, to vertical heterojunction bipolar transistors and methods of manufacture. The structure includes: a sub-collector region; a collector region above the sub-collector region; an intrinsic base above the collector region; an emitter above the intrinsic base region; and an extrinsic base on the intrinsic base and adjacent to the emitter, wherein the collector region includes an undercut profile comprising lower inwardly tapered sidewalls and upper inwardly tapered sidewalls which extend to a narrow section between the sub-collector region and the base region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile