发明授权
- 专利标题: Nonvolatile semiconductor memory device
- 专利标题(中): 非易失性半导体存储器件
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申请号: US12491638申请日: 2009-06-25
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公开(公告)号: US08315104B2公开(公告)日: 2012-11-20
- 发明人: Takuya Futatsuyama , Toshiaki Edahiro , Norihiro Fujita , Fumitaka Arai , Tohru Maruyama , Masaki Kondo
- 申请人: Takuya Futatsuyama , Toshiaki Edahiro , Norihiro Fujita , Fumitaka Arai , Tohru Maruyama , Masaki Kondo
- 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, L.L.P.
- 优先权: JP2008-171491 20080630
- 主分类号: G11C11/34
- IPC分类号: G11C11/34
摘要:
A nonvolatile semiconductor memory device includes a memory cell which stores data and which is capable of being rewritten electrically, a bit line which is connected electrically to one end of a current path of the memory cell, a control circuit which carries out a verify operation to check a write result after data is written to the memory cell, and a voltage setting circuit which sets a charging voltage for the bit line in a verify operation and a read operation and makes a charging voltage in a read operation higher than a charging voltage in a verify operation.
公开/授权文献
- US20090323432A1 NONVOLATILE SEMICONDUCTOR MEMORY DEVICE 公开/授权日:2009-12-31
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