Semiconductor memory device with internal voltage generator

Details Semiconductor memory device with internal voltage generator Semiconductor memory device with internal voltage generator

2007-08-07

2007-08-07

Elms, Richard T. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Including reference or bias voltage generator

C365S189070, C365S191000, C365S226000

Reexamination Certificate

active

11139181

ABSTRACT:
An internal voltage generator for use in a semiconductor memory device, includes: an internal voltage generation unit for generating an internal voltage by performing a charge pumping operation to a power supply voltage based on a result of comparing the internal voltage with a reference voltage; and an initial internal voltage generation unit for supplying the power supply voltage as the internal voltage based on a result of comparing the internal voltage with the power supply voltage when an operating voltage supplied to the semiconductor memory device is lower than a predetermined voltage level.

REFERENCES:
patent: 6765428 (2004-07-01), Kim et al.
patent: 2003/0071679 (2003-04-01), Kono et al.
patent: 2004/0150463 (2004-08-01), Senda

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