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:
Aug. 09, 2016
Filed:
Sep. 11, 2014
Applicant:
Sandisk Technologies Inc., Plano, TX (US);
Inventors:
Gautham Kumar Reddy, San Jose, CA (US);
Niles Yang, Mountain View, CA (US);
Alexandra Bauche, San Jose, CA (US);
Assignee:
SanDisk Technologies LLC, Plano, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G06F 11/07 (2006.01); G11C 16/16 (2006.01); G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
G06F 11/076 (2013.01); G06F 11/0727 (2013.01); G06F 11/0793 (2013.01); G06F 11/1008 (2013.01); G06F 11/1044 (2013.01); G11C 16/16 (2013.01);
Abstract
Data stored in a nonvolatile memory is selectively sampled based on write-erase cycle counts of blocks. Blocks with the lowest write-erase cycle counts are sampled to determine an error rate which is compared with a limit. If the error rate exceeds the limit then the sample is expanded to include blocks with the next lowest write-erase cycle counts.