Semiconductor storage device

Details Semiconductor storage device Semiconductor storage device

2007-07-03

2007-07-03

Decady, Albert (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Memory testing

C714S719000

Reexamination Certificate

active

10817860

ABSTRACT:
A testing device for a semiconductor storage device suppresses the increase in the circuit size, provides for facilitated accommodation to a test with frequent changes in the test pattern, and improves testability of the semiconductor storage device. A plurality of holding circuits are provided holding write data for memory cells of a memory cell array. (Original) The write data from the holding circuits are written in the memory cells of the selected address. A plurality of comparators are supplied with data read out from the memory cells and with data held by the holding circuits as expectation data to compare the readout data and the expectation data. The non-inverted or inverted value of the write data held by the holding circuits is output as the write data to the memory cells and as expectation data to the comparators depending on the value of the inversion control signal.

REFERENCES:
patent: 5646948 (1997-07-01), Kobayashi et al.
patent: 5673270 (1997-09-01), Tsujimoto
patent: 5724366 (1998-03-01), Furutani
patent: 5903582 (1999-05-01), Miyazaki
patent: 5946247 (1999-08-01), Osawa et al.
patent: 6094733 (2000-07-01), Momohara
patent: 6243307 (2001-06-01), Kawagoe
patent: 2001/0027545 (2001-10-01), Fujiwara
patent: 2002/0162064 (2002-10-01), Shimizu
patent: 2003/0041299 (2003-02-01), Kanazawa et al.
patent: 2003/0070121 (2003-04-01), Mori et al.
patent: 4-356799 (1992-12-01), None
patent: 2000-40397 (2000-02-01), None

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3782757