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:
May. 19, 2026
Filed:
Jun. 07, 2024
Microchip Technology Incorporated, Chandler, AZ (US);
Pitamber Shukla, San Jose, CA (US);
Chris Norrie, Castro Valley, CA (US);
Igor Ziper, Sunnyvale, CA (US);
Srinivas Yelisetti, Fremont, CA (US);
Microchip Technology Incorporated, Chandler, AZ (US);
Abstract
In some implementations, a controller may perform, on one or more wordlines of a block of a non-volatile memory device, read operations using default threshold voltages associated with two overlapped charge states. The controller may determine, using a machine learning model, a distribution of threshold voltages for the two overlapped charge states based on read errors associated with the threshold voltages. The controller may determine, based on the determined distribution of threshold voltages, a health of the block. The controller may perform a block refresh operation for the block based on the health of the block. The block refresh operation may be performed when the health satisfies a health threshold. The block refresh operation may not be performed when the health does not satisfy the health threshold.