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:
Apr. 07, 1981
Filed:
Nov. 13, 1978
Applicant:
Inventor:
Bernard Roger, Carpiquet, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 46 ; 357 44 ; 357 86 ; 357 89 ;
Abstract
A semiconductor device includes at least one pair of complementary vertical bipolar transistors formed on a plate having a substrate formed of two adjacent portions of opposite conductivity type forming a p-n junction therebetween. The two adjacent portions form, respectively, the collector region of a first of the transistors and the emitter region of a second of the transistors. An electrode is provided on the lower face of the substrate to connect together the two adjacent portions of the substrate. The invention is particularly applicable to mixed Darlington amplifier structures and push-pull amplifiers composed of such structures.