发明授权
US08634250B2 Methods and apparatus for programming multiple program values per signal level in flash memories 有权
闪存中每个信号电平编程多个程序值的方法和装置

Methods and apparatus for programming multiple program values per signal level in flash memories
摘要:
Methods and apparatus are provided for programming multiple program values per signal level in flash memories. A flash memory device having a plurality of program values is programmed by programming the flash memory device for a given signal level, wherein the programming step comprises a programming phase and a plurality of verify phases. In another variation, a flash memory device having a plurality of program values is programmed, and the programming step comprises a programming phase and a plurality of verify phases, wherein at least one signal level comprises a plurality of the program values. The signal levels or the program values (or both) can be represented using one or more of a voltage, a current and a resistance.
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