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:
Mar. 02, 1987
Applicant:
Inventor:
Else Kooi, Eindhoven, NL;
Assignee:
U.S. Philips Corp., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 50 ; 357 48 ;
Abstract
A semiconductor monolithic integrated circuit comprising circuit elements built into isolated epitaxial layer islands is described. The isolation is accomplished by part by a p-n junction between the epitaxial layer and its substrate, in part by an insulated zone of converted epitaxial material sunken only part way through the layer, and in part by a depletion layer or buried zone of the substrate conductivity type.