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:
Jan. 12, 2016
Filed:
Feb. 11, 2015
Applicant:
Sandisk Technologies Inc., Plano, TX (US);
Inventors:
Chun-Hung Lai, Kamakura, JP;
Shih-Chung Lee, Yokohama, JO;
Assignee:
SanDisk Technologies Inc., Plano, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/34 (2006.01); G11C 16/10 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3459 (2013.01); G11C 16/0483 (2013.01); G11C 16/10 (2013.01); G11C 16/3413 (2013.01); G11C 16/3427 (2013.01);
Abstract
Reducing peak current and/or power consumption during verify of a non-volatile memory is disclosed. During a program verify, only memory cells in a first physical segment of the selected word line are verified during an initial program loop; memory cells in a different physical segment of the word line are locked out and not verified. The locked out memory cells may be slower to program. During a later program loop, memory cells in all physical segments are program verified. Locked out strings do not conduct a significant current during verify, thus reducing current/power consumption.