Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

2011-07-05

2011-07-05

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Read/write circuit

Including signal comparison

C365S210100

Reexamination Certificate

active

07974137

ABSTRACT:
A semiconductor memory device comprises a comparing unit that comprises a potential of a memory cell with a reference potential supplied by a reference cell to read data of the memory cell; first and second bit lines connected to inputs of the comparing unit; a first memory cell connected to the first bit line; a second memory cell connected to the second bit line; a first reference cell acting as the reference cell; a second reference cell acting as another reference cell; a potential line that supplies the reference potential to the first and second reference cells; and a dummy cell comprising a coupling capacitor that stabilizes potential of the potential line.

REFERENCES:
patent: 6556469 (2003-04-01), Birk et al.
patent: 2005/0099866 (2005-05-01), Laurent
patent: 6-012860 (1994-01-01), None
patent: 2001-68636 (2001-03-01), None
patent: 2005-228446 (2005-08-01), None
patent: 2006-278778 (2006-10-01), None

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