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:
May. 10, 2022

Filed:

Feb. 05, 2020
Applicant:

Allegro Microsystems, Llc, Manchester, NH (US);

Inventors:

Muhammed Sarwar, North Grafton, MA (US);

Vyankatesh Gupta, Manchester, NH (US);

James McClay, Dudley, MA (US);

Sundar Chetlur, Bedford, NH (US);

Harianto Wong, Southborough, MA (US);

Gerardo A. Monreal, Buenos Aires, AR;

Nicolás Rafael Biberidis, Barcelona, ES;

Octavio H. Alpago, Ciudad de Buenos Aires, AR;

Nicolas Rigoni, Buenos Aires, AR;

Assignee:

Allegro MicroSystems, LLC, Manchester, NH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01); G06F 9/30 (2018.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0238 (2013.01); G06F 9/30029 (2013.01); G06F 9/30043 (2013.01); G11C 16/26 (2013.01);
Abstract

A method comprising: performing a first read from an address in a data storage module by using a first read voltage; storing, in a first register, data that is retrieved from the data storage module as a result of the first read; performing a second read from the address by using a second read voltage; storing, in a second register, data that is retrieved from the data storage module as a result of the second read; detecting whether a weak bit condition is present at the address based on the data that is stored in the first register and the data that is stored in the second register; and correcting the weak bit condition, when the weak bit condition is present at the address.


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