US Patent 7236402 Method and apparatus for programming/erasing a non-volatile memory

Patent 7236402 was granted and assigned to Freescale Semiconductor on June, 2007 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Freescale Semiconductor

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7236402

Date of Patent

June 26, 2007

Patent Application Number

11290321

Date Filed

November 30, 2005

Patent Primary Examiner

‌

Vu A Le

Patent abstract

An integrated circuit (10) having non-volatile memory (NVM) (14) includes a threshold selector (28) which selects a first one of a plurality of read current/voltage thresholds during a first portion of a program/erase cycle, and which selects a second one of a plurality of read current/voltage thresholds during a second portion of said program/erase cycle, wherein the first one of a plurality of read current/voltage thresholds and the second one of a plurality of read current/voltage thresholds are different. The first portion of the program/erase cycle occurs in time before the second portion of the program/erase cycle. The second one of the plurality of read current/voltage thresholds is less than the first one of the plurality of read current/voltage thresholds.

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