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:
May. 05, 2026

Filed:

Jan. 11, 2021
Applicant:

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

Inventors:

David Hulton, Seattle, WA (US);

Jeremy Chritz, Seattle, WA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01); G06F 12/14 (2006.01); G06F 13/16 (2006.01); G06F 13/40 (2006.01); G06F 13/42 (2006.01); G06F 21/10 (2013.01); G06F 21/60 (2013.01); G06F 21/62 (2013.01); G06F 21/79 (2013.01); G11C 7/20 (2006.01); G11C 14/00 (2006.01);
U.S. Cl.
CPC ...
G06F 21/79 (2013.01); G06F 12/0246 (2013.01); G06F 13/1668 (2013.01); G06F 13/4068 (2013.01); G06F 13/4221 (2013.01); G06F 21/602 (2013.01); G06F 21/107 (2023.08);
Abstract

Examples of systems and methods described herein provide for erasing an encrypted key used for data access to a non-volatile memory device. A memory controller may generate an encrypted key for data access to non-volatile memory devices; and, to provide security of data stored on the non-volatile memory devices, the memory controller may store the encrypted key in a local cache of the memory controller. The encrypted key may be erased responsive to losing power or powering down of memory controller. Advantageously, the data stored at the non-volatile memory device may not be accessed when the memory controller (or a computing device implementing the memory controller) loses power. Accordingly, if a malicious actor were to physically remove (or steal) a computing device implementing the memory controller (e.g., a laptop computer), in an attempt to acquire the data, the data stored on the non-volatile memory devices could not be accessed.


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