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:
Apr. 28, 2020

Filed:

Jun. 27, 2018
Applicant:

Western Digital Technologies, Inc., San Jose, CA (US);

Inventors:

Niles Yang, Mountain View, CA (US);

Pitamber Shukla, Milpitas, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/16 (2006.01); G11C 16/34 (2006.01); G06F 11/10 (2006.01); G11C 29/00 (2006.01); G11C 29/52 (2006.01);
U.S. Cl.
CPC ...
G11C 16/16 (2013.01); G06F 11/1068 (2013.01); G11C 16/3445 (2013.01); G11C 16/3495 (2013.01); G11C 29/52 (2013.01); G11C 29/765 (2013.01); G11C 29/82 (2013.01);
Abstract

Dynamic modification of health metrics for data blocks in non-volatile storage media based on erase operation loop counts. In one implementation, a method includes iteratively erasing a block of non-volatile storage media until a count of non-erasable bits satisfies criteria comprising an allowable non-erasable bits parameter, and determining that a number of iterations needed to erase the block exceeds a threshold number of iterations. The method further includes, in response to the number of iterations exceeding the threshold number of iterations, increasing the allowable non-erasable bits parameter for a subsequent erasure of the block.


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