Semiconductor device comprising a differential sense...

Details Semiconductor device comprising a differential sense... Semiconductor device comprising a differential sense...

2005-05-03

2005-05-03

Mai, Son (Department: 2818)

Static information storage and retrieval

Read/write circuit

C365S190000

Reexamination Certificate

active

06888759

ABSTRACT:
A semiconductor device includes a differential sense amplifier connected to a bit line, and a data transfer circuit including a column selection switch for turning ON/OFF the connection between a data line and the bit line. The semiconductor device incorporates one of the following features: the on-state resistance of the column selection switch being higher than that of a transistor array of the differential sense amplifier; separate provision of two column selection switches, one for read operation and the other for write operation; provision of a bit line additional capacitance and a connection control switch therefor; and provision of a data line dividing switch.

REFERENCES:
patent: 4984207 (1991-01-01), Tateno et al.
patent: 5657264 (1997-08-01), Yamauchi et al.
patent: 6091629 (2000-07-01), Osada et al.
patent: 6788561 (2004-09-01), Watanabe et al.
patent: 5-28752 (1993-02-01), None
patent: 6-208786 (1994-07-01), None

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