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:
Jul. 07, 2020
Filed:
Jun. 19, 2018
Applicant:
Cadence Design Systems, Inc., San Jose, CA (US);
Inventors:
Steven Lee Gregor, Oswego, NY (US);
Patrick Gallagher, Apalachin, NY (US);
Assignee:
CADENCE DESIGN SYSTEMS, INC., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/44 (2006.01); G11C 29/20 (2006.01); G11C 29/36 (2006.01); G11C 29/42 (2006.01);
U.S. Cl.
CPC ...
G11C 29/44 (2013.01); G11C 29/20 (2013.01); G11C 29/36 (2013.01); G11C 29/42 (2013.01);
Abstract
Systems and methods disclosed herein provide for efficiently testing memories during mission mode self-test ('MMST') without destroying any original functional data. Embodiments provide for a converter to feed a manipulated version of the original functional data back into the tested memories. Embodiments further provide an accumulator to count the occurrences of correctable and uncorrectable errors associated with the tested memories.