发明申请
US20110103149A1 NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND METHOD FOR DRIVING SAME
有权
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 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: US12851002申请日: 2010-08-05
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公开(公告)号: US20110103149A1公开(公告)日: 2011-05-05
- 发明人: Ryota KATSUMATA , Hideaki Aochi , Hiroyasu Tanaka , Masaru Kito , Yoshiaki Fukuzumi , Masaru Kidoh , Yosuke Komori , Megumi Ishiduki , Junya Matsunami , Tomoko Fujiwara , Ryouhei Kirisawa , Yoshimasa Mikajiri , Shigeto Oota
- 申请人: Ryota KATSUMATA , Hideaki Aochi , Hiroyasu Tanaka , Masaru Kito , Yoshiaki Fukuzumi , Masaru Kidoh , Yosuke Komori , Megumi Ishiduki , Junya Matsunami , Tomoko Fujiwara , Ryouhei Kirisawa , Yoshimasa Mikajiri , Shigeto Oota
- 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
- 优先权: JP2009-251892 20091102
- 主分类号: G11C16/04
- IPC分类号: G11C16/04
摘要:
According to one embodiment, a nonvolatile semiconductor memory device includes a memory cell array and a control circuit. The memory cell array includes a stacked body, a through-hole, a semiconductor pillar, and a charge storage film. The stacked body includes a plurality of insulating films alternately stacked with a plurality of electrode films. The through-hole is made in the stacked body to align in a stacking direction. The semiconductor pillar is buried in the through-hole. The charge storage film is provided between the electrode films and the semiconductor pillar. Memory cells are formed at each intersection between the electrode films and the semiconductor pillar. The control circuit writs a first value to at least some of the memory cells, performs an erasing operation of the first value from the memory cell written with the first value, reads data stored in the memory cell having undergone the erasing operation, and sets the memory cell to be unusable in a case that the first value is read from the memory cell.
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