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. 27, 1990
Filed:
Apr. 01, 1988
Applicant:
Inventors:
Henri R Chalifour, Andover, MA (US);
Clifford A Levi, Billerica, MA (US);
Assignee:
Alpha Industries, Inc., Woburn, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 14 ; 357 48 ;
Abstract
A switching circuit comprising a substrate of semiconductor material, a first switching device (e.g., a diode) formed in a first region of the substrate, a second switching device (e.g., a diode) formed in a second region of the substrate integral with the first region, the second switching device being electrically coupled to the first switching device, and means, disposed in the substrate, for electrically isolating the first substrate region from the second substrate region.