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.

Date of Patent:
Jun. 30, 2015

Filed:

Apr. 26, 2013
Applicant:

Sandisk Technologies, Inc., Plano, TX (US);

Inventors:

Nian Niles Yang, Mountain View, CA (US);

Uday Chandrasekhar, San Jose, CA (US);

Yichao Huang, San Jose, CA (US);

Alexandra Bauche, San Jose, CA (US);

William S. Wu, Cupertino, CA (US);

Assignee:

SanDisk Technologies Inc., Plano, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/06 (2006.01); G11C 8/14 (2006.01); G11C 16/34 (2006.01); G11C 29/02 (2006.01); G11C 29/00 (2006.01); G11C 29/12 (2006.01);
U.S. Cl.
CPC ...
G11C 16/06 (2013.01); G11C 8/14 (2013.01); G11C 16/0483 (2013.01); G11C 16/3495 (2013.01); G11C 29/025 (2013.01); G11C 29/804 (2013.01); G11C 29/82 (2013.01); G11C 2029/1202 (2013.01);
Abstract

In a flash memory, erase blocks containing shorted or broken word lines may be used, at least in part, to store user data. Such blocks may use different parameters to those used by non-defective blocks, may be subject to different wear leveling, and may store data selected to reduce the number of access operations.


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