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. 16, 2003

Filed:

Apr. 29, 2002
Applicant:
Inventor:

Shigekazu Yamada, Cupertino, CA (US);

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 1/606 ;
U.S. Cl.
CPC ...
G11C 1/606 ;
Abstract

System to program core cells in a memory device without over-programming. The system includes a method for programming a voltage threshold (Vt) level of a core cell in a memory device. The method comprises steps of determining a desired Vt for the core cell, programming a portion of the Vt of the core cell using a selected programming strength, verifying that the portion of the Vt is successfully programmed, adjusting the selected programming strength, and repeating the step of programming, verifying, and adjusting until the Vt of the core cell is substantially equal to the desired Vt.


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Yamada, Shigekazu. (2003). System for programming a flash memory device (U.S. Patent No. 6621742). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6621742

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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