Oscillators – Ring oscillators
Patent
1999-08-30
2000-11-28
Grimm, Siegfried H.
Oscillators
Ring oscillators
331177R, 327281, 327288, H03B 502, H03H 1126, H03K 3354
Patent
active
061541001
ABSTRACT:
Of the MOSFETs used to implement an oscillator circuit or a delay circuit in a semiconductor device, minimally the MOSFETs P12 (N12) used in a part of the circuit that affects the oscillation period or delay time are low-threshold-voltage type MOSFETs.
REFERENCES:
patent: 4853654 (1989-08-01), Sakurai
patent: 5180995 (1993-01-01), Hayashi et al.
patent: 5499214 (1996-03-01), Mori et al.
patent: 5731727 (1998-03-01), Iwamoto et al.
Grimm Siegfried H.
NEC Corporation
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