发明授权
US07917685B2 Method for reading a multilevel cell in a non-volatile memory device
有权
用于读取非易失性存储器件中的多电平单元的方法
- 专利标题: Method for reading a multilevel cell in a non-volatile memory device
- 专利标题(中): 用于读取非易失性存储器件中的多电平单元的方法
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申请号: US11417573申请日: 2006-05-04
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公开(公告)号: US07917685B2公开(公告)日: 2011-03-29
- 发明人: Chang Wan Ha
- 申请人: Chang Wan Ha
- 申请人地址: US ID Boise
- 专利权人: Micron Technology, Inc.
- 当前专利权人: Micron Technology, Inc.
- 当前专利权人地址: US ID Boise
- 代理机构: Leffert Jay & Polglaze, P.A.
- 主分类号: G06F12/00
- IPC分类号: G06F12/00 ; G06F13/00
摘要:
A non-volatile memory device has a memory array comprising a plurality of memory cells. The array can operate in either a multilevel cell or single level cell mode and each cell has a lower page and an upper page of data. The memory device has a data latch for storing flag data and a cache latch coupled to the data latch. A read method comprises initiating a lower page read of a memory cell and reading, from the data latch, flag data that indicates whether a lower page read operation is necessary.
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