Internal voltage initializing circuit for use in...

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing

Reexamination Certificate

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C327S537000, C327S544000

Reexamination Certificate

active

07616032

ABSTRACT:
Provided are an internal voltage initializing circuit for use in a semiconductor memory and a driving method thereof, which are capable of preventing a back bias voltage from abnormally increasing due to a pumping operation of a VPP pump according to a change in a level of a power-up signal. The internal voltage initializing circuit includes: a high voltage initializing unit for selectively connecting a power supply voltage terminal an a high voltage terminal in response to a power-up signal; and a back bias voltage initializing unit for selectively connecting a ground terminal and a back bias voltage terminal in response to a signal produced by delaying the power-up signal by a predetermined time.

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patent: 2004/0232957 (2004-11-01), Do

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