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:
Sep. 21, 1993
Filed:
Aug. 08, 1991
Applicant:
Inventor:
Bertrand Conan, Aix en Provence, FR;
Assignee:
SGS-Thomson Microelectronics, S.A., Gentilly, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365200 ; 36523001 ; 365201 ;
Abstract
Integrated circuit memories provided with redundancy means enable the lines or columns of defective cells to be repaired. In order to avoid incompatibility between the addressing modifications due to a 'grouped test' and those due to placing a redundant column or line into service, means are provided for the addressing, in grouped test mode, not only of several selected columns or lines of the memory but also of a redundant column or line that may have been put into service to replace a defective one of the selected columns or lines.