发明授权
US07911838B2 Read operation for non-volatile storage with compensation for coupling
有权
对非易失性存储进行读操作,对耦合进行补偿
- 专利标题: Read operation for non-volatile storage with compensation for coupling
- 专利标题(中): 对非易失性存储进行读操作,对耦合进行补偿
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申请号: US12622966申请日: 2009-11-20
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公开(公告)号: US07911838B2公开(公告)日: 2011-03-22
- 发明人: Nima Mokhlesi
- 申请人: Nima Mokhlesi
- 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: G11C16/04
- IPC分类号: G11C16/04
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 account for this coupling, the read process for a particular memory cell will provide compensation to an adjacent memory cell in order to reduce the coupling effect that the adjacent memory cell has on the particular memory cell.
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