发明授权
- 专利标题: Read operation for non-volatile storage that includes compensation for coupling
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申请号: US11099049申请日: 2005-04-05
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公开(公告)号: US07187585B2公开(公告)日: 2007-03-06
- 发明人: Yan Li , Jian Chen
- 申请人: Yan Li , Jian Chen
- 申请人地址: US CA Milpitas
- 专利权人: Sandisk Corporation
- 当前专利权人: Sandisk Corporation
- 当前专利权人地址: US CA Milpitas
- 代理机构: Vierra Magen Marcus & DeNiro LLP
- 主分类号: G11C7/00
- IPC分类号: G11C7/00
摘要:
Shifts in the apparent charge stored on a floating gate (or other charge storing element) of a non-volatile memory cell can occur because of the coupling of an electric field based on the charge stored in adjacent floating gates (or other adjacent charge storing elements). The problem occurs most pronouncedly between sets of adjacent memory cells that have been programmed at different times. To compensate for this coupling, the read process for a given memory cell will take into account the programmed state of an adjacent memory cell.
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