发明授权
US08223552B2 Nonvolatile semiconductor memory device and method for driving the same
失效
非易失性半导体存储器件及其驱动方法
- 专利标题: Nonvolatile semiconductor memory device and method for driving the same
- 专利标题(中): 非易失性半导体存储器件及其驱动方法
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申请号: US12496064申请日: 2009-07-01
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公开(公告)号: US08223552B2公开(公告)日: 2012-07-17
- 发明人: Jun Fujiki , Koichi Muraoka , Naoki Yasuda
- 申请人: Jun Fujiki , Koichi Muraoka , Naoki Yasuda
- 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: JP2008-252611 20080930
- 主分类号: G11C11/40
- IPC分类号: G11C11/40
摘要:
A nonvolatile semiconductor memory device includes a memory cell and a driving unit. The a memory cell has a semiconductor layer having, a channel, and a source region and a drain region provided on both sides of the channel; a first insulating film provided on the channel; a charge retention layer provided on the first insulating film; and a gate electrode provided on the charge retention layer. The driving unit applies a burst signal having a constant amplitude and a constant frequency between the gate electrode and the semiconductor layer and performs at least one of operations of programming and erasing charge on the charge retention layer.
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