Static information storage and retrieval – Systems using particular element – Ferroelectric
Reexamination Certificate
2007-10-09
2007-10-09
Phung, Anh (Department: 2824)
Static information storage and retrieval
Systems using particular element
Ferroelectric
C365S148000, C365S201000
Reexamination Certificate
active
11072241
ABSTRACT:
In a semiconductor memory device including memory cells respective having a ferroelectric capacitor, and are provided at intersection portions of sets of a plurality of word lines and plate lines which is adjacent thereto, with bit lines, clamp circuits are respectively connected between the bit lines and nodes being supplied with reference potentials. Herewith, electric charges supplied from the ferroelectric capacitors to the bit lines are extracted by the clamp circuits, and capacities of the bit lines are increased artificially. Consequently, during a data read operation, an amount of electric potential change of the bit lines according to stored data in the ferroelectric capacitors is improved, and it becomes possible to obtain a large potential difference between the bit lines.
REFERENCES:
patent: 5430671 (1995-07-01), Hirano et al.
patent: 5617349 (1997-04-01), Koike
patent: 6731554 (2004-05-01), Jacob et al.
patent: 6801447 (2004-10-01), Murakuki
patent: 6826099 (2004-11-01), Joachim et al.
patent: 7012829 (2006-03-01), Kawashima et al.
patent: 2001/0040814 (2001-11-01), Takashima
patent: 2002/0031003 (2002-03-01), Hoya et al.
patent: 2002/0044490 (2002-04-01), Fuchikami et al.
patent: 2003/0026123 (2003-02-01), Takashima
patent: 0 721 191 (1986-07-01), None
patent: 6-342597 (1994-12-01), None
patent: 2001-319472 (2001-11-01), None
patent: 2002-93155 (2002-03-01), None
patent: 2002074939 (2002-03-01), None
Arent Fox LLP.
Fujitsu Limited
Luu Pho M.
Phung Anh
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