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:
Aug. 06, 1991
Filed:
Jul. 05, 1988
Applicant:
Inventors:
Richard L Woodruff, Colorado Springs, CO (US);
John T Chaffee, Colorado Springs, CO (US);
Craig Hafer, Colorado Springs, CO (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437228 ; 156901 ; 428901 ; 437241 ; 437243 ; 437245 ;
Abstract
A radiation-hardened field oxide comprises a thin layer of high-quality thermal oxide, a thick layer of borophosphosilica glass and a diffusion barrier layer of undoped oxide, with the boron and phosphorous provising recombination sites for electron-hole pairs.