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:
Mar. 19, 2013

Filed:

Nov. 14, 2011
Applicants:

Kwok W. Yeung, Milpitas, CA (US);

Meng-kun Lee, Cupertino, CA (US);

Inventors:

Kwok W. Yeung, Milpitas, CA (US);

Meng-Kun Lee, Cupertino, CA (US);

Assignee:

Link—A—Media Devices Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A NAND Flash memory controller is used to perform an erase operation on a NAND Flash memory chip including to a cell on the NAND Flash memory chip; the cell is configured to store a first number of bits. It is determined whether the erase operation performed on the NAND Flash memory chip is successful. In the event it is determined that the erase operation performed on the NAND Flash memory chip is unsuccessful, the number of bits stored by the cell is reduced from the first number of bits to a second number of bits; the second number of bits is strictly less than the first number of bits.


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