Title:
疲労状態に基づく不揮発性メモリセルのリフレッシュ
Document Type and Number:
Japanese Patent JP5483202
Kind Code:
B2
Abstract:
In one or more of the disclosed embodiments, memory cells in a memory device are refreshed upon an indication of a fatigue condition. In one such embodiment, controller monitors behavior parameters of the cells and determines if any of the parameters are outside of a normal range set for each one, thus indicating a fatigue condition. If any cell indicates a fatigue condition, the data from the block of cells indicating the fatigue is moved to another block. In one embodiment, an error detection and correction process is performed on the data prior to being written into another memory block.
Inventors:
Roof Perver, Frankie F.
Sarin, Vishal
Hoei, Jun Shen
Sarin, Vishal
Hoei, Jun Shen
Application Number:
JP2010517094A
Publication Date:
May 07, 2014
Filing Date:
July 14, 2008
Export Citation:
Assignee:
APPLIED MATERIALS,INCORPORATED
International Classes:
G11C16/02; G06F12/16; G11C16/04; G11C16/06
Domestic Patent References:
| JP2003058432A | ||||
| JP11053266A | ||||
| JP8279295A |
Foreign References:
| WO2001022232A1 |
Attorney, Agent or Firm:
Nomura Yasuhisa
Yoshiyuki Osuga
Yoshiyuki Osuga