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. 10, 1981
Filed:
Aug. 14, 1979
Applicant:
Inventor:
William R Morcom, Melbourne Beach, FL (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
156628 ; 156656 ; 156657 ; 156662 ; 156664 ; 156665 ; 427 90 ; 427 93 ;
Abstract
PROM wafers having fuses on raised oxide are reworked by stripping the fuses and connectors, non-selectively etching the oxide layer to form a substantially planar, oxide surface resulting from the differential etching rate of the heavily phosphorus doped raised oxide surface compared to the remainder of lightly doped oxide, increasing the oxide layer thickness and forming new fuses and connectors on the new oxide.