US 12,436,708 B2
Solid-state drive secure data wiping for reuse and recycling
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); and Judah Gamliel Hahn, Ofra (IL)
Assigned to Sandisk Technologies, Inc., Milpitas, CA (US)
Filed by Sandisk Technologies, Inc., Milpitas, CA (US)
Filed on Aug. 3, 2023, as Appl. No. 18/230,145.
Claims priority of provisional application 63/523,889, filed on Jun. 28, 2023.
Prior Publication US 2025/0004660 A1, Jan. 2, 2025
Int. Cl. G11C 11/00 (2006.01); G06F 3/06 (2006.01)
CPC G06F 3/0652 (2013.01) [G06F 3/062 (2013.01); G06F 3/0679 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for erasing data from a solid-state drive (SSD), the method comprising:
prior to user data being stored on the SSD, generating a restore image of information stored on the SSD which characterizes a restore state of the SSD;
imparting energy to the SSD to promote electrons representing bits in corresponding memory cells of the SSD to exit the cells, wherein imparting energy to the SSD comprises imparting at least one of thermal energy or high-energy electromagnetic radiation waves to the SSD; and
generating a set of quantitative data for verifying erasure of user data from the SSD.