High density bitline selection apparatus for semiconductor...

Details High density bitline selection apparatus for semiconductor... High density bitline selection apparatus for semiconductor...

2006-08-29

2006-08-29

Nguyen, Tuan T. (Department: 2824)

Static information storage and retrieval

Read/write circuit

For complementary information

C365S063000, C365S188000

Reexamination Certificate

active

07099206

ABSTRACT:
A bitline selection apparatus for a semiconductor memory device includes a first local bitline pair and a second local bitline pair selectively coupled to a global bitline pair, each of the first and second local bitline pairs including a true bitline and a complementary bitline. Each of the true bitlines is selectively coupled to a common true node through an n-type pass device and a p-type pass device in parallel therewith, and each of the complementary bitlines is selectively coupled to a common complementary node through an n-type pass device and a p-type pass device in parallel therewith.

REFERENCES:
patent: 5808500 (1998-09-01), Kalpakjian
patent: 6175532 (2001-01-01), Ooishi
patent: 6188596 (2001-02-01), Holst
patent: 6198682 (2001-03-01), Proebsting
patent: 6707753 (2004-03-01), Clark et al.
patent: 2004/0109337 (2004-06-01), Mayer et al.
patent: 2004/0246812 (2004-12-01), Bhavnagarwala et al.

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