发明授权
US07158421B2 Use of data latches in multi-phase programming of non-volatile memories
有权
在非易失性存储器的多相编程中使用数据锁存器
- 专利标题: Use of data latches in multi-phase programming of non-volatile memories
- 专利标题(中): 在非易失性存储器的多相编程中使用数据锁存器
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申请号: US11097517申请日: 2005-04-01
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公开(公告)号: US07158421B2公开(公告)日: 2007-01-02
- 发明人: Yan Li , Raul-Adrian Cernea
- 申请人: Yan Li , Raul-Adrian Cernea
- 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: Parsons Hsue & de Runtz LLP
- 主分类号: G11C7/10
- IPC分类号: G11C7/10
摘要:
A non-volatile memory device includes circuitry for governing a multi-phase programming process in a non-volatile memory. The exemplary embodiment uses a quick pass write technique where a single programming pass is used, but the biasing of the selected memory cells is altered to slow programming as the memory cells approach their target values by raising the voltage level of the channels of the selected memory cells. A principle aspect of the present invention introduces a latch associated with the read/write circuitry connectable to each selected memory cell along a corresponding bit line for the storage of the result of the verify at this lower level.
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