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:
Apr. 12, 2016
Filed:
Aug. 22, 2014
Applicant:
Sandisk Technologies Inc., Plano, TX (US);
Inventors:
Mrinal Kochar, San Jose, CA (US);
Gautam Dusija, Milpitas, CA (US);
Chris Avila, Saratoga, CA (US);
Yingda Dong, San Jose, CA (US);
Man Mui, Fremont, CA (US);
Yichao Huang, San Jose, CA (US);
Deepak Raghu, Milpitas, CA (US);
Assignee:
SanDisk Technologies Inc., Plano, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/16 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3445 (2013.01); G11C 16/16 (2013.01);
Abstract
In a three-dimensional nonvolatile memory, when a block erase failure occurs, zones within a block may be separately verified to see if some zones pass verification. Zones that pass may be designated as good zones and may subsequently be used to store user data while bad zones in the same block may be designated as bad and may not be used for subsequent storage of user data.