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. 08, 2011
Filed:
Jun. 23, 2006
Prashant Dubey, Ghaziabad, IN;
Amit Kashyap, Uttaranchal, IN;
Prashant Dubey, Ghaziabad, IN;
Amit Kashyap, Uttaranchal, IN;
STMicroelectronics Pvt. Ltd., Uttar Pradesh, IN;
Abstract
The present invention provides a built-in self-repairable memory. The invention repairs a faulty IC through hard fuses, as well as through available redundancy in memories on chip. As the faults are not present in all the memories, the invention uses a lesser number of fuses to actually make a repair and thus results in a yield enhancement. The fuse data is stored in a compressed form and then decompressed as a restore happens at the power on. The fuse data interface with the memory to be repaired is serial. The serial links decreases the routing congestion and hence gain in area as well as gain in yield (due to lesser defects and reduced area).