发明授权
- 专利标题: SRAM cell and integrated memory circuit using the same
- 专利标题(中): SRAM单元和集成存储电路使用相同
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申请号: US10449536申请日: 2003-06-02
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公开(公告)号: US06847542B2公开(公告)日: 2005-01-25
- 发明人: Tomoaki Yabe
- 申请人: Tomoaki Yabe
- 申请人地址: JP Tokyo
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权: JP2002-365257 20021217
- 主分类号: G11C11/41
- IPC分类号: G11C11/41 ; G11C11/412 ; H01L21/8244 ; H01L27/11 ; G11C11/00
摘要:
An SRAM cell comprising a first inverter comprising a first load element and a first driver NMOSFET, a second inverter comprising a second load element and a second driver NMOSFET and having input and output terminals cross-coupled to output and input terminals of the first inverter, respectively, a first transfer gate NMOSFET having a current path inserted between the first inverter and a first bit line and a gate connected to a word line, and a second transfer gate NMOSFET having a current path inserted between the second inverter and a second bit line and a gate connected to the word line, wherein a current drivability of the first inverter and the first transfer gate NMOSFET for the first bit line is set to be larger than that of the second inverter and the second transfer gate NMOSFET for the second bit line.
公开/授权文献
- US20040114422A1 SRAM cell and integrated memory circuit using the same 公开/授权日:2004-06-17
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