Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tetsuji Nakakuma0
Hiroshige Hirano0
Date of Patent
September 12, 2006
0Patent Application Number
112471670
Date Filed
October 12, 2005
0Patent Primary Examiner
Patent 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.
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