Static information storage and retrieval – Read/write circuit – Bad bit
Reexamination Certificate
2006-11-14
2006-11-14
Dinh, Son T. (Department: 2824)
Static information storage and retrieval
Read/write circuit
Bad bit
C365S189120, C365S211000
Reexamination Certificate
active
07136313
ABSTRACT:
To provide a semiconductor storage device which can adapt to assembly processes involving different treatment temperatures, can become unrewritable when rewriting of data by the user is prohibited, negates the necessity for developing different semiconductor storage devices, and lowers development cost.A semiconductor storage device is provided with, as areas for storing faulty address information indicating a faulty area and operation mode setting information about the semiconductor storage device, a first setting function storage area103formed from electrically-rewritable nonvolatile memory and a second setting function storage area102formed from once-rewritable nonvolatile memory. Transfer of faulty address information to a faulty address register111and transfer of operation mode setting information to an operation mode register110are selectively performed.
REFERENCES:
patent: 6438029 (2002-08-01), Hiraki et al.
patent: 6462995 (2002-10-01), Urakawa
patent: 6563732 (2003-05-01), Matarrese et al.
patent: 6611458 (2003-08-01), Ishibashi et al.
patent: 6781893 (2004-08-01), Hiraki et al.
patent: 7054207 (2006-05-01), Keeth et al.
patent: 2003/0014688 (2003-01-01), Wu
patent: 2002-117692 (2002-04-01), None
Gohou Yasushi
Hirano Hiroshige
Iwanari Shunichi
Miki Takashi
Murakuki Yasuo
Dinh Son T.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Semiconductor storage device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor storage device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor storage device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3632580