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:
Jan. 25, 2022

Filed:

Jan. 28, 2021
Applicant:

Micron Technology, Inc., Boise, ID (US);

Inventors:

Jung Sheng Hoei, Newark, CA (US);

Peter Sean Feeley, Boise, ID (US);

Sampath K. Ratnam, Boise, ID (US);

Sead Zildzic, Rancho Cordova, CA (US);

Kishore Kumar Muchherla, Fremont, CA (US);

Assignee:

Micron Technology, Inc., Boise, ID (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/07 (2006.01); G11C 16/34 (2006.01); G11C 16/26 (2006.01); G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
G06F 11/076 (2013.01); G06F 11/073 (2013.01); G06F 11/0793 (2013.01); G11C 16/26 (2013.01); G11C 16/3431 (2013.01); G11C 16/0483 (2013.01);
Abstract

A processing device in a memory system incrementally adjusts a center read voltage for a first block of a memory device by a first offset amount to generate an adjusted read voltage and causes the adjusted read voltage to be applied to the first block to determine an adjusted bit count associated with the adjusted read voltage. The processing device further determines whether a difference between the adjusted bit count and a previous bit count associated with a previous read voltage satisfies a first threshold criterion pertaining to an error threshold, and responsive to the difference between the adjusted bit count and the previous bit count not satisfying the first threshold criterion, determines a read window for the first block based on the previous read voltage.


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