Semiconductor device

Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction

Reexamination Certificate

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Details

C714S704000

Reexamination Certificate

active

07823046

ABSTRACT:
A semiconductor device has a memory section including a first and second memory cell storing a data bit and error correcting bit, respectively. An error correcting section outputs a data signal containing an error-corrected data bit, using the error correcting bit and an information signal when the error is corrected. A test section outputs a first determination signal when the memory section is determined to be faulty by checking the data signal based on a program. A counter section counts the number of times by which the information signal is supplied thereto and outputs a second determination signal when the result of counting becomes equal to a reference value. A determining section determines that the memory section is faulty when one of the first and second determination signals is supplied thereto.

REFERENCES:
patent: 4617674 (1986-10-01), Mangulis et al.
patent: 4688219 (1987-08-01), Takemae
patent: 4780875 (1988-10-01), Sakai
patent: 4942556 (1990-07-01), Sasaki et al.
patent: 5228046 (1993-07-01), Blake et al.
patent: 5553231 (1996-09-01), Papenberg et al.
patent: 5646948 (1997-07-01), Kobayashi et al.
patent: 5671239 (1997-09-01), Higashitani et al.
patent: 5712861 (1998-01-01), Inoue et al.
patent: 5745506 (1998-04-01), Yamashita et al.
patent: 5868195 (1999-02-01), Westbrooks, Jr.
patent: 5878098 (1999-03-01), Wang et al.
patent: 5968195 (1999-10-01), Ishiyama
patent: 6161209 (2000-12-01), Moher
patent: 6233717 (2001-05-01), Choi
patent: 6262925 (2001-07-01), Yamasaki
patent: 6567323 (2003-05-01), Pitts et al.
patent: 6917967 (2005-07-01), Wu et al.
patent: 6973608 (2005-12-01), Abramovici et al.
patent: 1-223700 (1989-09-01), None
patent: 3-87000 (1991-04-01), None
patent: 4-349549 (1992-12-01), None
patent: 5-81855 (1993-04-01), None
patent: 6-175934 (1994-06-01), None
U.S. Appl. No. 10/739,123, filed Dec. 19, 2003, Hirabayashi.
U.S. Appl. No. 10/805,227, filed Mar. 22, 2004, Hirabayashi.

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