Title:
SEMICONDUCTOR STORAGE DEVICE HAVING NONVOLATILE SEMICONDUCTOR MEMORY
Document Type and Number:
WIPO Patent Application WO/2013/132532
Kind Code:
A1
Abstract:
A semiconductor storage device has a nonvolatile semiconductor memory comprised from multiple storage areas, and a controller, which is coupled to the nonvolatile semiconductor memory. The controller (A) identifies a storage area state, which is the state of a storage area, (B) decides, based on the storage area state identified in the (A), a read parameter, which is a parameter for use when reading data from a storage area with respect to a storage area of this storage area state, and (C) uses the read parameter decided in the (B) with respect to a read-target storage area and reads data from this read-target storage area.
Inventors:
SUZUKI AKIFUMI (JP)
TSUNEHIRO TAKASHI (JP)
TSUNEHIRO TAKASHI (JP)
Application Number:
PCT/JP2012/001530
Publication Date:
September 12, 2013
Filing Date:
March 06, 2012
Export Citation:
Assignee:
HITACHI LTD (JP)
SUZUKI AKIFUMI (JP)
TSUNEHIRO TAKASHI (JP)
SUZUKI AKIFUMI (JP)
TSUNEHIRO TAKASHI (JP)
International Classes:
G11C16/34; G11C29/02
Foreign References:
| US5657332A | 1997-08-12 | |||
| US6151246A | 2000-11-21 | |||
| US20060028875A1 | 2006-02-09 | |||
| US5657332A | 1997-08-12 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL (3 Kanda-Ogawamachi 3-chome, Chiyoda-k, Tokyo 52, JP)
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