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. 10, 2017
Filed:
Apr. 28, 2016
Winbond Electronics Corp., Taichung, TW;
Pin-Yao Wang, Taichung, TW;
Winbond Electronics Corp., Taichung, TW;
Abstract
A non-volatile semiconductor memory device achieving low power consumption and erasing method thereof is provided. The flash memory of the present invention includes a memory array formed with NAND type strings. The memory array includes a plurality of global blocks, one global block includes a plurality of blocks, and one block includes a plurality of NAND type strings. When the block of the selected global block is erased and the next block is in adjacent relationship, electric charge accumulated in one of P-wells is discharged to another one of the P-wells, and then the next selected block is erased. Thus, the electric charge is shared between the adjacent P-wells to achieve low power consumption.