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:
Apr. 07, 1987
Filed:
Apr. 18, 1986
Applicant:
Inventor:
Robert A Dwyer, Readington Township, Hunterdon County, NJ (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
427 89 ; 427 85 ; 427 93 ; 427 96 ; 357 52 ; 357 53 ; 357 71 ;
Abstract
A three part edge seal for an integrated circuit semiconductor chip is disclosed. The edge seal includes two separate layers of metal one of which overlays the other in electrical contact. One of the metal layers is in ohmic contact with a highly doped region formed in the planar surface of the semiconductor body. The two metal layers serve as an electrical conductor to distribute power to various portions of the integrated circuit contained in the chip and electrically charge the highly doped region to prevent migration of ions into the active areas of the integrated circuits.