Invention Grant
US07649782B2 Non-volatile memory having a dynamically adjustable soft program verify voltage level and method therefor
有权
具有动态可调软件的非易失性存储器验证电压电平及其方法
- Patent Title: Non-volatile memory having a dynamically adjustable soft program verify voltage level and method therefor
- Patent Title (中): 具有动态可调软件的非易失性存储器验证电压电平及其方法
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Application No.: US11831168Application Date: 2007-07-31
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Publication No.: US07649782B2Publication Date: 2010-01-19
- Inventor: Richard K. Eguchi , Jon S. Choy
- Applicant: Richard K. Eguchi , Jon S. Choy
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agent Joanna G. Chiu
- Main IPC: G11C16/06
- IPC: G11C16/06

Abstract:
An erase operation in a non-volatile memory includes selecting a block on which to perform an erase operation, erasing the selected block, receiving test data corresponding to the selected block, determining a soft program verify voltage level based on the test data, and soft programming the erased selected block using the soft program verify voltage level. A non-volatile memory includes a plurality of blocks, a test block which stores test data corresponding to each of the plurality of blocks, and a flash control coupled to the plurality of blocks and the test block, the flash control determining a soft program verify voltage level for a particular block of the plurality of blocks based on the test data for the particular block when the particular block is being soft programmed.
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