Invention Application
US20160042802A1 Adaptive Selective Bit Line Pre-Charge For Current Savings And Fast Programming
有权
自适应选择性位线预充电用于节省电流和快速编程
- Patent Title: Adaptive Selective Bit Line Pre-Charge For Current Savings And Fast Programming
- Patent Title (中): 自适应选择性位线预充电用于节省电流和快速编程
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Application No.: US14454702Application Date: 2014-08-07
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Publication No.: US20160042802A1Publication Date: 2016-02-11
- Inventor: Man L. Mui , Yee Lih Koh , Yenlung Li , Cynthia Hsu
- Applicant: SanDisk Technologies Inc.
- Main IPC: G11C16/34
- IPC: G11C16/34 ; G11C16/26 ; G11C16/10

Abstract:
Techniques are provided for efficiently performing programming operations in a memory device. In particular, power consumption is reduced in sensing circuitry by avoiding pre-charging of bit lines for certain memory cells at certain times during a programming operation. One approach uses knowledge of the different phases of a programming operation to reduce the number of unnecessary bit line pre-charges. For example, during the lower program loop numbers of a programming operation, bit line pre-charging may occur for lower data states but not for higher data states. Similarly, during the higher program loop numbers, bit line pre-charging may occur for higher data states but not for lower data states. In another approach, which may or may not incorporate knowledge of the different phases of a programming operation, the setting of the bit line pre-charge can be updated at least once after it is initially set in the verify portion.
Public/Granted literature
- US09595345B2 Adaptive selective bit line pre-charge for current savings and fast programming Public/Granted day:2017-03-14
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