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:
Sep. 19, 2017

Filed:

Oct. 10, 2016
Applicant:

Wingyu Leung, Cupertino, CA (US);

Inventor:

Wingyu Leung, Cupertino, CA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/34 (2006.01); G11C 16/10 (2006.01); G11C 16/16 (2006.01); G11C 16/26 (2006.01); G11C 16/08 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3431 (2013.01); G11C 16/08 (2013.01); G11C 16/10 (2013.01); G11C 16/16 (2013.01); G11C 16/26 (2013.01);
Abstract

A method of a state machine executing instructions related to program-erase operations performed on a non-volatile memory is disclosed. The method includes implementing a program-erase loop counter in the state machine, and presetting a threshold for an electric current of memory cells and a step time for each of the program and the erase operation. Based on repeatedly executing a number of comparison and verification operations, each for a duration of the preset step time until the program-erase loop counter reaches a maximum value thereof, the electric current of the each programmed-erased memory cell is maintained at a desired level thereof following termination of the each of the program and the erase operation.


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