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:
May. 27, 2008
Filed:
Feb. 09, 2005
James W. Dawson, Poughkeepsie, NY (US);
Thomas J. Knips, Wappingers Falls, NY (US);
Donald W. Plass, Poughkeepsie, NY (US);
Kenneth J. Reyer, Stormville, NY (US);
James W. Dawson, Poughkeepsie, NY (US);
Thomas J. Knips, Wappingers Falls, NY (US);
Donald W. Plass, Poughkeepsie, NY (US);
Kenneth J. Reyer, Stormville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for implementing ABIST data compression and serialization for memory built-in self test of SRAM with redundancy. The method includes providing detection signals asserted for one failing data out, two failing data outs, and greater than two failing data outs. The method also includes individually encoding the failing bit position of each corresponding failing data out with a binary representation value corresponding therewith. The method further includes serializing results of the providing detection signals and the individually encoding, and transmitting results of the serializing to a redundancy support register function on a single fail buss.