Invention Grant
US07800956B2 Programming algorithm to reduce disturb with minimal extra time penalty
有权
编程算法以最小的额外时间损失来减少干扰
- Patent Title: Programming algorithm to reduce disturb with minimal extra time penalty
- Patent Title (中): 编程算法以最小的额外时间损失来减少干扰
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Application No.: US12163073Application Date: 2008-06-27
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Publication No.: US07800956B2Publication Date: 2010-09-21
- Inventor: Dana Lee , Deepanshu Dutta , Yingda Dong
- Applicant: Dana Lee , Deepanshu Dutta , Yingda Dong
- Applicant Address: US CA Milpitas
- Assignee: Sandisk Corporation
- Current Assignee: Sandisk Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Vierra Magen Marcus & DeNiro LLP
- Main IPC: G11C11/34
- IPC: G11C11/34

Abstract:
Programming time is reduced in a non-volatile memory in a multi-pass programming process. In a first programming pass, high state cells are programmed by a sequence of program pulses to identify fast and slow high state cells, while lower state cells are locked out from programming. Once identified, the fast high state cells are temporarily locked out from programming while the slow high state cells continue being programmed to their final intended state. Further, the program pulses are sharply stepped up to program the slow high state cells. In a second programming pass, the fast high state cells are programmed along with the other, lower state cells, until they all reach their respective intended states. A time savings is realized compared to approaches in which all high state cells are programmed in the first programming pass.
Public/Granted literature
- US20090323429A1 PROGRAMMING ALGORITHM TO REDUCE DISTURB WITH MINIMAL EXTRA TIME PENALTY Public/Granted day:2009-12-31
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