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:
Jan. 29, 2013
Filed:
May. 20, 2010
Sebastian Ehrenreich, Boeblingen, DE;
Tilman Gloekler, Boeblingen, DE;
Willm Hinrichs, Boeblingen, DE;
Jens Kuenzer, Boeblingen, DE;
Sebastian Ehrenreich, Boeblingen, DE;
Tilman Gloekler, Boeblingen, DE;
Willm Hinrichs, Boeblingen, DE;
Jens Kuenzer, Boeblingen, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An improved method monitors memory circuits, especially those used in integrated circuits. The method provides: writing random data in at least one monitor cell, which is implemented as a regular memory cell with an artificially deteriorated stability in order to provoke early fails when compared to fails in a regular memory cell; reading the random data out of the at least one monitor cell; comparing the output data of the read operation against an expected value to detect a value mismatch; and reporting the value mismatch to an error structure if the value mismatch is detected.