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. 26, 2019
Filed:
Feb. 09, 2016
Applicant:
Globalfoundries Inc., Grand Cayman, KY;
Inventors:
Michael R. Ouellette, Westford, VT (US);
Deepak I. Hanagandi, Bangalore, IN;
Aravindan J. Busi, Bangalore, IN;
Kiran K. Narayan, Hyderabad, IN;
Michael A. Ziegerhofer, Jeffersonville, VT (US);
Assignee:
GLOBALFOUNDRIES U.S. INC., Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 29/44 (2006.01); G11C 29/36 (2006.01);
U.S. Cl.
CPC ...
G11C 29/44 (2013.01); G11C 29/36 (2013.01); G11C 2029/3602 (2013.01);
Abstract
Approaches for a memory built-in self-test (MBIST) are provided. The MBIST circuit includes a fail status register which receives a new fail signal value in response to a detection of a unique fail in a pattern, and a pattern mask register which stores at an end of the pattern a different value of the new fail signal value representative of the unique fail.