发明名称 |
Semiconductor device comprising a differential sense amplifier, a write column selection switch and a read column selection switch |
摘要 |
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. |
申请公布号 |
US6888759(B2) |
申请公布日期 |
2005.05.03 |
申请号 |
US20030644744 |
申请日期 |
2003.08.21 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAKAKUMA TETSUJI;HIRANO HIROSHIGE |
分类号 |
H01L21/8242;G11C7/06;G11C11/407;G11C11/409;G11C11/419;H01L21/8239;H01L27/105;H01L27/108;(IPC1-7):G11C7/00 |
主分类号 |
H01L21/8242 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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