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:
Nov. 04, 1986
Filed:
Mar. 30, 1984
Carlton G Amdahl, Saratoga, CA (US);
Gene M Amdahl, Atherton, CA (US);
Robert Reinschmidt, San Jose, CA (US);
Trilogy Systems Corporation, Cupertino, CA (US);
Abstract
A circuit structure, and method for forming the structure, permits wafer scale integration by fabricating plural copies of the circuit in integrated circuit form, and interconnecting predetermined circuit element groups of the copies in a manner that permits a majority voting operation to take place. In this manner, defective circuit elements are masked by being out-voted by corresponding non-defective circuit elements that participate in the voting process. Alternate embodiments of a voter unit, used to implement the voting operation, includes a preferred embodiment that takes advantage of emitter-coupled-logic structure to provide a multiplex, voter, latch combination capable of selectively implementing normal and diagnostic operation. Included in the preferred embodiment of the voter unit is a fused link that implements a repair operation in the event there exists more defective circuit element groups than non-defective circuit element groups participating in the voting process.