Semiconductor device and control method of the same

Details Semiconductor device and control method of the same Semiconductor device and control method of the same

2011-03-01

2011-03-01

Le, Vu A (Department: 2824)

Static information storage and retrieval

Read/write circuit

Including reference or bias voltage generator

C365S226000, C327S540000, C327S541000

Reexamination Certificate

active

07898879

ABSTRACT:
The present invention is a semiconductor device including: a resistor R11(first resistor part) and an FET15(second resistor part) connected in series between a power supply Vcc (first power supply) and ground (second power supply); an output node N11provided between the resistor R11and FET15and used for outputting a reference voltage; a feedback node N12provided between the power supply Vcc and the ground; and a voltage control circuit (19) that maintains a voltage of the feedback node N12at a constant level by using the reference voltage of the output node N11and the voltage of the feedback node N12. The present invention can provide a semiconductor device having a reference voltage generating circuit capable of generating the reference voltage that does not greatly depend on a power supply voltage and its control method.

REFERENCES:
patent: 5955873 (1999-09-01), Maccarrone et al.
patent: 6498469 (2002-12-01), Kobayashi
patent: 6590444 (2003-07-01), Ikehashi et al.
patent: 6870766 (2005-03-01), Cho et al.
patent: 2006/0113978 (2006-06-01), Suzuki

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