Invention Grant
- Patent Title: Multi-bit flash memory devices and methods of programming and erasing the same
- Patent Title (中): 多位闪存设备及其编程和擦除方法
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Application No.: US12471729Application Date: 2009-05-26
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Publication No.: US08072804B2Publication Date: 2011-12-06
- Inventor: Se-Hoon Lee , Choong-Ho Lee , Jung-Dal Choi
- Applicant: Se-Hoon Lee , Choong-Ho Lee , Jung-Dal Choi
- Applicant Address: KR Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Myers Bigel Sibley & Sajovec, P.A.
- Priority: KR2008-71286 20080722
- Main IPC: G11C11/34
- IPC: G11C11/34

Abstract:
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.
Public/Granted literature
- US20100020601A1 Multi-Bit Flash Memory Devices and Methods of Programming and Erasing the Same Public/Granted day:2010-01-28
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