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:
Sep. 24, 2013
Filed:
Mar. 24, 2011
Wah Kit Loh, Richardson, TX (US);
Beena Pious, Carrollton, TX (US);
Wah Kit Loh, Richardson, TX (US);
Beena Pious, Carrollton, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An embodiment of the invention provides a method of repairing soft failures in memory cells of an SRAM array. The SRAM array is tested to determine the location and type of soft failures in the memory cells. An assist circuit is activated that changes a voltage in a group of memory cells with the same type of soft failure. The change in voltage created by the assist circuit repairs the soft failures in the group. The group may be a word line or a bit line. The type of soft failures includes a failure during a read of a memory cell and a failure during the write of a memory cell.