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:
Jan. 09, 2018

Filed:

Feb. 17, 2017
Applicant:

Winbond Electronics Corp., Taichung, TW;

Inventors:

Hiroki Murakami, Taichung, TW;

Kenichi Arakawa, Taichung, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/34 (2006.01); G11C 16/10 (2006.01); G11C 16/14 (2006.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3445 (2013.01); G11C 16/0483 (2013.01); G11C 16/10 (2013.01); G11C 16/14 (2013.01); G11C 16/26 (2013.01);
Abstract

Provided is a flash memory device capable of restricting power consumption in an erase operation. The invention includes a plurality of wells, a power supply device, and a coupling device. The power supply device applies erase voltages to the wells for performing an erase operation. The coupling device performs selective coupling between the wells. When performing the erase operation on the wells, the power supply device applies the erase voltage to one of the wells, and applies the erase voltage to the other one of the wells after the coupling device electrically couples the one of the wells to the other one of the wells.


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