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:
Mar. 16, 1976
Filed:
Mar. 10, 1975
Applicant:
Inventor:
David K Hartman, Manlius, NY (US);
Assignee:
General Electric Company, Syracuse, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
29578 ; 29588 ; 29590 ; 357 73 ;
Abstract
A semiconductor device and method of manufacture therefor includes the establishment of at least one PN junction in a semiconductor chip through conventional techniques. Electrical contacts are formed. The entire semiconductor device is coated with a passivant coating having a first layer of low temperature silicon dioxide and a second layer of glass, the second layer of glass being applied in two steps.