发明申请
- 专利标题: Multi-Bit Flash Memory Devices and Methods of Programming and Erasing the Same
- 专利标题(中): 多位闪存设备及其编程和擦除方法
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申请号: US12471729申请日: 2009-05-26
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公开(公告)号: US20100020601A1公开(公告)日: 2010-01-28
- 发明人: Se-Hoon Lee , Choong-Ho Lee , Jung-Dal Choi
- 申请人: Se-Hoon Lee , Choong-Ho Lee , Jung-Dal Choi
- 优先权: KR2008-71286 20080722
- 主分类号: G11C16/04
- IPC分类号: G11C16/04
摘要:
A non-volatile memory device includes an array of non-volatile memory cells configured to support single bit and multi-bit programming states. A control circuit is provided, which is configured to program a first page of non-volatile memory cells in the array as M-bit cells during a first programming operation and further configured to program the first page of non-volatile memory cells as N-bit cells during a second programming operation. The first and second programming operations are separated in time by at least one operation to erase the first page of non-volatile memory cells. M and N are unequal integers greater than zero.
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