Semiconductor nonvolatile memory device

Details Semiconductor nonvolatile memory device Semiconductor nonvolatile memory device

2007-03-27

2008-10-28

Pham, Ly D (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185050, C365S185220, C365S185280, C365S185290

Reexamination Certificate

active

07443731

ABSTRACT:
An operation scheme for operating stably a semiconductor nonvolatile memory device is provided.When hot-hole injection is conducted in the semiconductor nonvolatile memory device of a split gate structure, the hot-hole injection is verified using a crossing point that does not change with time. Thus, an erased state can be verified without being aware of any time-varying changes.Also, programming or programming/erasure is conducted by repeating pulse voltage or multi-step voltage application to a gate section multiple times.

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