Semiconductor memory

Details Semiconductor memory Semiconductor memory

2005-11-29

2005-11-29

Tran, Michael (Department: 2827)

Static information storage and retrieval

Floating gate

Data security

C365S228000

Reexamination Certificate

active

06970381

ABSTRACT:
A semiconductor memory in which the protection state of data in a nonvolatile memory can be changed quickly and which provides sufficient security. A volatile protection state specification section controls the protection state of data in the nonvolatile memory. A nonvolatile initial state store section determines the initial state of the protection state specification section.

REFERENCES:
patent: 6031757 (2000-02-01), Chuang et al.
patent: 6731536 (2004-05-01), McClain et al.
Patent Abstract of Japan, Publication No., 2001-051904, published Feb. 23, 2001.

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