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:
Jan. 29, 1985
Filed:
Feb. 22, 1982
Applicant:
Inventor:
Thomas W Kotowski, Norlesville, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H02M / ; H03K / ;
U.S. Cl.
CPC ...
307254 ; 307270 ; 357 48 ;
Abstract
A PN junction-isolated bipolar integrated circuit having a power transistor protected from delay in turn-off by a parasitic substrate injection. Protection is obtained by interposing an additional isolation pocket between an isolating pocket producing the substrate injection and an isolation pocket for an input transistor for the power transistor, and coupling the additional isolation pocket to the base of the power transistor.