Semiconductor device having a boosting circuit to suppress...

Details Semiconductor device having a boosting circuit to suppress... Semiconductor device having a boosting circuit to suppress...

2005-08-09

2005-08-09

Tra, Quan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

Reexamination Certificate

active

06927620

ABSTRACT:
A semiconductor device includes a boosting circuit for supplying a power supply voltage during a standby state of the semiconductor device. The boosting circuit includes a charge pump circuit and first and second detection circuits for detecting an output voltage of the charge pump circuit. The second detection circuit is operated by a DC current greater than that of the first detection circuit, and is activated by an output (Vdet1) from the first detection circuit. The charge pump circuit is activated based on at least an output (Vdet2) from the second detection circuit.

REFERENCES:
patent: 6195307 (2001-02-01), Umezawa et al.
patent: 6259612 (2001-07-01), Itoh
patent: 2001-95234 (2001-04-01), None
patent: 2002-15571 (2002-01-01), None

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