发明授权
- 专利标题： Semiconductor storage device
- 专利标题（中）： 半导体存储设备
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申请号： US12529282申请日： 2008-09-22
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公开(公告)号： US08060797B2公开(公告)日： 2011-11-15
- 发明人: Toshikatsu Hida , Shinichi Kanno , Hirokuni Yano , Kazuya Kitsunai , Shigehiro Asano , Junji Yano
- 申请人： Toshikatsu Hida , Shinichi Kanno , Hirokuni Yano , Kazuya Kitsunai , Shigehiro Asano , Junji Yano
- 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： JP2008-049193 20080229
- 国际申请： PCT/JP2008/067597 WO 20080922
- 国际公布： WO2009/107268 WO 20090903
- 主分类号： G06F11/00
- IPC分类号： G06F11/00
摘要：
A semiconductor storage device can efficiently perform a refresh operation. A semiconductor storage device is provided which includes a non-volatile semiconductor memory storing data in blocks, the block being a unit of data erasing. A controlling unit is further included monitoring an error count of data stored in a monitored block selected from the blocks and for refreshing data in the monitored block in which the error count is equal to or larger than a threshold value.
公开/授权文献
- US20100313084A1 SEMICONDUCTOR STORAGE DEVICE 公开/授权日：2010-12-09