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. 12, 2024

Filed:

Aug. 18, 2022
Applicant:

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

Inventors:

Nicola Colella, Caserta, IT;

Antonino Pollio, Vico Equense, IT;

Gianfranco Ferrante, Naples, IT;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/10 (2016.01); G06F 12/02 (2006.01); G06F 12/0873 (2016.01); G06F 12/1009 (2016.01);
U.S. Cl.
CPC ...
G06F 12/1009 (2013.01); G06F 12/0246 (2013.01); G06F 12/0873 (2013.01);
Abstract

A method includes: creating L2P tables while programming virtual blocks (VBs) across memory planes; creating an L2P bitmap for each VB, the L2P bitmap identifying logical addresses, within each L2P table, that belong to each VB; creating a VB bitmap for each L2P table, the VB bitmap identifying virtual blocks to which the respective L2P table points; creating an updated VB bitmap for a first L2P table based on changes to the first L2P table; determining that an entry in the VB bitmap is different than the entry in the updated VB bitmap, the entry corresponding to a particular VB; identifying an L2P bitmap corresponding to the particular VB; changing a bit within the identified L2P bitmap for an L2P mapping corresponding to the entry; and employing the identified L2P bitmap to determine L2P table(s) of the respective L2P tables that contain valid logical addresses for the particular VB.


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