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:
Nov. 08, 2022

Filed:

Oct. 22, 2021
Applicant:

Stmicroelectronics S.r.l., Agrate Brianza, IT;

Inventors:

Giovanni Matranga, Catania, IT;

Gianbattista Lo Giudice, Pedara, IT;

Rosario Roberto Grasso, S. Agata Li Battiati, IT;

Alberto Jose' Di Martino, Palagonia, IT;

Assignee:

STMICROELECTRONICS S.R.L., Agrate Brianza, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/34 (2006.01); G11C 16/30 (2006.01); G11C 16/14 (2006.01);
U.S. Cl.
CPC ...
G11C 16/344 (2013.01); G11C 16/14 (2013.01); G11C 16/30 (2013.01); G11C 16/3404 (2013.01);
Abstract

A method for erasing non-volatile memory including applying a first voltage pulse to a non-volatile memory cell to perform a first erase operation of the non-volatile memory cell and determining that a threshold voltage of the non-volatile memory cell is greater than a test voltage. The method further comprising updating a dedicated memory location with a value; and checking the non-volatile memory cell to determine whether the threshold voltage of the non-volatile memory cell is less than an erase-verify voltage to verify that the first erase operation has been performed successfully.


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