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. 13, 1990
Filed:
Dec. 08, 1988
Applicant:
Inventors:
George Bajor, Melbourne, FL (US);
Hugh C Nicolay, Melbourne Village, FL (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
437 31 ; 437 33 ; 437 61 ; 357 34 ; 357 44 ;
Abstract
A process includes selectively forming laterally adjacent complementary doped epitaxial layers over low resistive buried regions of a horizontally isolated substrate. Self-aligned oxide mask are used for the epitaxial deposition. Lateral dielectric isolation trenches at the complementary doped epitaxial boundary complete the isolation of the islands. Base and emitter regions are formed in the epitaxial collector layers.