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FLASH PROGRAMMING TECHNOLOGY FOR IMPROVED MARGIN AND INHIBITING DISTURBANCE
FLASH PROGRAMMING TECHNOLOGY FOR IMPROVED MARGIN AND INHIBITING DISTURBANCE
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机译:闪存编程技术,可提高利润和抑制干扰
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摘要
A charge storage memory is configured in a NAND array, and includes NAND strings coupled to bit lines via string select switches and includes word lines. A controller is configured to produce a program bias pulse by biasing the bit lines and string select lines in a first condition; setting a word line coupled to a target cell to a first voltage level while the bit lines and string select lines are in the first condition; thereafter, biasing the bit lines and string select lines in a second condition; and setting the word line coupled to the target cell to a second voltage level higher than the first voltage level while the bit lines and string select lines are in the second condition. Program bias pulses produced in this manner can be used in a modulated incremental stepped pulse programming sequence.
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