Semiconductor memory device and method of programming the same

Details Semiconductor memory device and method of programming the same Semiconductor memory device and method of programming the same

1998-07-29

2000-02-29

Nguyen, Tan T.

Static information storage and retrieval

Floating gate

Particular biasing

36518522, G11C 1600

Patent

active

060317604

ABSTRACT:
A semiconductor memory device includes sense amplifier circuits each having a latch circuit connected to a sense node and storing circuits for storing identification data indicating sense amplifier circuits instructed to perform program when program data is loaded into the sense amplifier circuits. Before program verify read operation, data in the sense amplifier circuits instructed to perform programming by the loaded data is reset to the loaded data on the basis of the identification data in the storing circuits. This suppresses any rise in the potential of the common source line of a plurality of memory cells when a program verify operation is performed or when a page divisional program operation is performed, or suppresses any difference between the common source line potential rises in a program verify read operation and a normal read operation, thereby preventing incomplete programming. This improves the reliability of the program verify read operation and the page divisional program operation.

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