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.

Date of Patent:
Oct. 14, 2014

Filed:

Jan. 04, 2013
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Marc A. Gollub, Round Rock, TX (US);

Girisankar Paulraj, Tamilnadu, IN;

Diyanesh B. Vidyapoornachary, Bangalore, IN;

Kenneth L. Wright, Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 29/42 (2006.01); G11C 29/12 (2006.01); G11C 29/56 (2006.01);
U.S. Cl.
CPC ...
G11C 29/42 (2013.01); G11C 29/00 (2013.01); G11C 29/56 (2013.01); G11C 29/12 (2013.01);
Abstract

A method includes directing an access of a memory location of a memory device to an error correction code (ECC) decoder in response to receiving a test activation request indicating the memory location. The method also includes writing a test pattern to the memory location and reading a value from the memory location. The method further includes determining whether a fault is detected at the memory location based on a comparison of the test pattern and the value.


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