Invention Grant
- Patent Title: Non-volatile memory program algorithm device and method
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Application No.: US14214097Application Date: 2014-03-14
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Publication No.: US09293217B2Publication Date: 2016-03-22
- Inventor: Xian Liu , James Cheng , Dmitry Bavinov , Alexander Kotov , Jong-Won Yoo
- Applicant: Silicon Storage Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Silicon Storage Technology, Inc.
- Current Assignee: Silicon Storage Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: DLA Piper LLP (US)
- Main IPC: G11C16/04
- IPC: G11C16/04 ; G11C16/34 ; G11C16/12 ; G11C11/56 ; G11C16/10

Abstract:
A non-volatile memory device and method for programming cells using repeated pulses of program voltages, with interleaved read operations to determine the level of read current, until the desired programming state is achieved. Each successive program pulse has one or more program voltages increased by a step value relative to the previous pulse. For a single level cell type, each cell is individually removed from the programming pulses after reaching a first read current threshold, and the step value is increased for one or more kicker pulses thereafter. For a multi-level cell type, the step value drops after one of the cells reaches a first read current threshold, some cells are individually removed from the programming pulses after reaching a second read current threshold while others are individually removed from the programming pulses after reaching a third read current threshold.
Public/Granted literature
- US09431126B2 Non-volatile memory program algorithm device and method Public/Granted day:2016-08-30
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