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:
Mar. 04, 2008
Filed:
Dec. 10, 2004
Applicant:
Markus Seuring, Dresden, DE;
Inventor:
Markus Seuring, Dresden, DE;
Assignee:
Advanced Micro Devices, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); G11C 29/00 (2006.01); G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Semiconductor devices including logic circuitry and embedded memories may be tested using one or more flip-flops in a scan chain that are connected to a control input of an MBIST logic, thereby allowing the control of the MBIST logic during a simultaneous scan test and memory test run. By combining the output of the MBIST logic with the output of the scan chain, fault diagnosis is maintained.