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公开(公告)号:US08514624B2
公开(公告)日:2013-08-20
申请号:US13165416
申请日:2011-06-21
申请人: Krishna K. Parat , Akira Goda , Koichi Kawai , Brian J. Soderling , Jeremy Binfet , Arnaud A. Furnemont , Tejas Krishnamohan , Tyson M. Stichka , Giuseppina Puzzilli
发明人: Krishna K. Parat , Akira Goda , Koichi Kawai , Brian J. Soderling , Jeremy Binfet , Arnaud A. Furnemont , Tejas Krishnamohan , Tyson M. Stichka , Giuseppina Puzzilli
IPC分类号: G11C16/04
CPC分类号: G11C29/765 , G11C11/5628 , G11C16/0483 , G11C16/16 , G11C16/349 , G11C29/789
摘要: Memory devices and methods are disclosed, including a method involving erasing a block of memory cells. After erasing the block, and before subsequent programming of the block, a number of bad strings in the block are determined based on charge accumulation on select gate transistors. The block is retired from use if the number of bad strings exceeds a threshold. Additional embodiments are disclosed.
摘要翻译: 公开了存储器件和方法,包括涉及擦除存储器单元块的方法。 在擦除块之后,并且在块的后续编程之前,基于选择栅晶体管上的电荷积累来确定块中的多个不良串。 如果坏字符串的数量超过阈值,则该块将从使用中退出。 公开了另外的实施例。
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公开(公告)号:US20120327713A1
公开(公告)日:2012-12-27
申请号:US13165416
申请日:2011-06-21
申请人: Krishna K. Parat , Akira Goda , Koichi Kawai , Brian J. Soderling , Jeremy Binfet , Arnaud A. Furnemont , Tejas Krishnamohan , Tyson M. Stichka , Giuseppina Puzzilli
发明人: Krishna K. Parat , Akira Goda , Koichi Kawai , Brian J. Soderling , Jeremy Binfet , Arnaud A. Furnemont , Tejas Krishnamohan , Tyson M. Stichka , Giuseppina Puzzilli
CPC分类号: G11C29/765 , G11C11/5628 , G11C16/0483 , G11C16/16 , G11C16/349 , G11C29/789
摘要: Memory devices and methods are disclosed, including a method involving erasing a block of memory cells. After erasing the block, and before subsequent programming of the block, a number of bad strings in the block are determined based on charge accumulation on select gate transistors. The block is retired from use if the number of bad strings exceeds a threshold. Additional embodiments are disclosed.
摘要翻译: 公开了存储器件和方法,包括涉及擦除存储器单元块的方法。 在擦除块之后,并且在块的后续编程之前,基于选择栅晶体管上的电荷积累来确定块中的多个不良串。 如果坏字符串的数量超过阈值,则该块将从使用中退出。 公开了另外的实施例。
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