METHOD OF PROGRAMMING A NON VOLATILE MEMORY DEVICE

METHOD OF PROGRAMMING A NON VOLATILE MEMORY DEVICE

PURPOSE: A method for programming a non-volatile memory device is provided to reduce the distribution width of the threshold voltage in memory cells by controlling the number of the program verifying operations of the memory cells. CONSTITUTION: A program command is inputted. A program and a program...

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Bibliographische Detailangaben
1. Verfasser: HAN, JUNG CHUL
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:PURPOSE: A method for programming a non-volatile memory device is provided to reduce the distribution width of the threshold voltage in memory cells by controlling the number of the program verifying operations of the memory cells. CONSTITUTION: A program command is inputted. A program and a program verifying operation are implemented according to each program pulse. At least one program verifying operation is omitted while the program is operated n times. A program voltage is increased as much as a step voltage which is set according to the application of the program pulse. The program pulse is different for each cell groups in a first memory cell or a second memory cell.