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:
Jun. 07, 1988
Filed:
Aug. 18, 1986
Robert W Bower, Kihei, HI (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
An improved bipolar slot transistor vertically formed in a slot in an integrated circuit structure is disclosed. The transistor is formed in a substantially vertical slot having an active base region formed beneath the bottom of the slot and comprises an active collector region formed beneath the active base region, a buried collector layer beneath the active collector region and in communication with a collector contact; an emitter region formed in the slot over the active base region; and extrinsic base regions formed adjacent to but insulated from the sidewalls of the slot communicating with the active base region and with base contact regions on the surface of the structure.