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:
Oct. 07, 2025
Filed:
Aug. 03, 2023
Sandisk Technologies, Inc., Milpitas, CA (US);
Daniel J. Linnen, Limestone, TN (US);
Ramanathan Muthiah, Bangalore, IN;
Preston Thomson, Boise, ID (US);
Kirubakaran Periyannan, Saratoga, CA (US);
Niles Nian Yang, Mountain View, CA (US);
Inez Hua, Palo Alto, CA (US);
Judah Gamliel Hahn, Ofra, IL;
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
A process for reliably erasing data from a solid-state drive (SSD) includes first, prior to user data being stored on the drive, generating a restore image of information stored on the drive which characterizes a restore state of the drive, such as a factory image. Then, imparting energy to the drive to promote electrons representing bits in corresponding memory cells to exit the cells, such as imparting thermal energy or high-energy electromagnetic radiation to the drive. Also, generating a set of quantitative data for verifying erasure of the data for presentation to the user helps ensure trust in the data wipe process. The drive may also be electrically erased prior to imparting energy to the SSD, to provide another level of confidence in the data wipe process. The restore image may then be loaded to the necessary locations on the wiped drive to restore drive functionality.