Delay circuit of semiconductor device

Details Delay circuit of semiconductor device Delay circuit of semiconductor device

2011-08-16

2011-08-16

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S284000, C327S272000

Reexamination Certificate

active

07999592

ABSTRACT:
A delay circuit of a semiconductor device increases its delay time as an external voltage increases. The delay circuit can also ensure a desired delay time according to an external voltage, without additional delay circuits. The delay circuit of the semiconductor device includes a first delay unit, and a second delay. The second delay unit has a propagation delay characteristic different from that of the first delay unit with respect to variation of a power supply voltage, wherein the first delay unit is supplied with a first power supply voltage independent of variation of an external voltage, and the second delay unit is supplied with a second power supply voltage dependent on the variation of the external voltage.

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