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. 17, 1987
Filed:
Jan. 13, 1986
Applicant:
Inventor:
Richard Ferrant, Aix en Provence, FR;
Assignee:
Eurotechnique, Rousset, FR;
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365200 ;
Abstract
An integrated circuit memory is provided in which a repair circuit allows a redundant cell line to be substituted for a cell line which has proved defective. In the invention, access is had to the repair circuit by using the properties of the decoder of the memory. An instruction for decomposing a fuse is given, for all the repair circuits of the memory, through a single external terminal conected to a connection which serves all the repair circuits. When the fuse is decomposed, a bistable circuit changes state and switches the cell lines.