Static information storage and retrieval – Read/write circuit – Differential sensing
Patent
1998-01-28
1999-11-16
Nelms, David
Static information storage and retrieval
Read/write circuit
Differential sensing
365 94, 36518907, G11C 702
Patent
active
059869577
ABSTRACT:
A semiconductor device includes an identification data storing circuit having ROM cells, a dummy data storing circuit having destructive type ROM cells, and a comparing circuit. The identification data storing circuit stores identification data inherent to a semiconductor chip. The dummy data storing circuit stores dummy data which is exclusive with respect to the identification data. The comparing circuit compares and checks data items read out from the above two data storing circuits and outputting the result of comparison.
REFERENCES:
patent: 4812634 (1989-03-01), Ohta et al.
patent: 4887234 (1989-12-01), Iijima
patent: 5293610 (1994-03-01), Schwarz
patent: 5408672 (1995-04-01), Miyazawa et al.
patent: 5557743 (1996-09-01), Pombo et al.
patent: 5680581 (1997-10-01), Banno et al.
patent: 5687345 (1997-11-01), Matsubara et al.
patent: 5704039 (1997-12-01), Yishay et al.
patent: 5784537 (1998-07-01), Suzuki et al.
patent: 5825783 (1998-10-01), Momohara
patent: 5826007 (1998-10-01), Sakaki et al.
patent: 5844990 (1998-12-01), Kokubu et al.
patent: 5860123 (1999-01-01), Sata
Auduong Gene N.
Kabushiki Kaisha Toshiba
Nelms David
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