Invention Grant
US08379443B2 Charge retention for flash memory by manipulating the program data methodology
有权
通过操纵程序数据方法对闪存进行充电保留
- Patent Title: Charge retention for flash memory by manipulating the program data methodology
- Patent Title (中): 通过操纵程序数据方法对闪存进行充电保留
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Application No.: US12473037Application Date: 2009-05-27
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Publication No.: US08379443B2Publication Date: 2013-02-19
- Inventor: Sheau-Yang Ch'ng , Mee-Choo Ong , Kian-Huat Hoo
- Applicant: Sheau-Yang Ch'ng , Mee-Choo Ong , Kian-Huat Hoo
- Applicant Address: US CA Sunnyvale
- Assignee: Spansion LLC
- Current Assignee: Spansion LLC
- Current Assignee Address: US CA Sunnyvale
- Agency: Frommer Lawrence & Haug LLP
- Agent Matthew M. Gaffney
- Main IPC: G11C11/34
- IPC: G11C11/34 ; G11C16/04

Abstract:
A method, system and apparatus for determining whether any un-programmed cell is affected by charge disturb by comparing the voltage threshold of the un-programmed cells against a reference voltage. If the voltage threshold for the un-programmed cell exceeds the reference voltage, the failed or defective un-programmed cell will be then be programmed. This will change the defective un-programmed cell to a new programmed value. To account for the location of the failing memory cell, address syndrome bits are used to identify the location of the defective memory cell.
Public/Granted literature
- US20100302846A1 CHARGE RETENTION FOR FLASH MEMORY BY MANIPULATING THE PROGRAM DATA METHODOLOGY Public/Granted day:2010-12-02
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