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:
Feb. 20, 1990
Filed:
Nov. 12, 1987
Applicant:
Inventors:
Stefan Barbu, Caen, FR;
Claude E Chapron, Caen, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 71 ; 357 68 ; 357 65 ; 437192 ;
Abstract
The invention relates to semiconductor devices comprising logic, or low-noise, transistors, or transistors for very high frequencies whose structure is improved with respect to the dimensions, the series resistance value, and/or the gain. Such semiconductor devices may be integrated into a semiconductor body having surfaces with contact windows covered with layers of metal combined with the material of the semiconductor body. A multi-collector transistor structure is also formed.
Barbu, Stefan. (1990). Method of manufacturing conductive electrodes for a circuit element, and (U.S. Patent No. 4903115). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4903115
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile