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:
Aug. 13, 2019
Filed:
Feb. 28, 2018
Applicant:
Sandisk Technologies Llc, Plano, TX (US);
Inventors:
Kei Date, Isehara, JP;
Hideto Tomiie, Chigasaki, JP;
Assignee:
SanDisk Technologies LLC, Addison, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/34 (2006.01); G11C 16/16 (2006.01); G11C 16/04 (2006.01); G11C 11/56 (2006.01); H01L 27/11524 (2017.01); H01L 27/11573 (2017.01); H01L 27/11556 (2017.01); H01L 27/11582 (2017.01); H01L 27/11519 (2017.01); H01L 27/11565 (2017.01); H01L 27/11529 (2017.01); H01L 27/1157 (2017.01);
U.S. Cl.
CPC ...
G11C 16/3445 (2013.01); G11C 16/0483 (2013.01); G11C 16/16 (2013.01); G11C 11/5635 (2013.01); G11C 11/5671 (2013.01); H01L 27/1157 (2013.01); H01L 27/11519 (2013.01); H01L 27/11524 (2013.01); H01L 27/11529 (2013.01); H01L 27/11556 (2013.01); H01L 27/11565 (2013.01); H01L 27/11573 (2013.01); H01L 27/11582 (2013.01);
Abstract
In order to have different subsets of memory cells of a non-volatile memory system erase at the same speed, it is proposed to perform erasing by separately controlling the speed of erase for the different subsets in response to observing speed information for the subsets during the erasing.