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. 23, 1982
Filed:
Feb. 11, 1980
Applicant:
Inventor:
Bernard P Roger, Carpiquet, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01C / ;
U.S. Cl.
CPC ...
357 46 ; 357 51 ; 357 55 ; 357 56 ;
Abstract
A semiconductor device such as an integrated Darlington circuit includes a mesa which is bounded by two parallel grooves which extend into the device substrate. A semiconductor resistor is formed in the mesa and extends from the mesa surface down to a buried epitaxial layer. This semiconductor resistor is separated from the grooves by a region of semiconductor material, so that its resistance may be established in an accurate and reproducible manner.
Roger, Bernard. (1982). Semiconductor device having an improved semiconductor resistor (U.S. Patent No. 4360822). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4360822
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile