Back bias generator

Details Back bias generator Back bias generator

1985-05-22

1986-12-09

Anagnos, Larry N.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307304, H02M 318, H03K 17687, H03K 1730

Patent

active

046282149

ABSTRACT:
The invention comprises an improved back bias generator for an integrated circuit wherein a transistor circuit first acts as an isolation device during the charging phase of a charge pump capacitor and acts as a coupling device during a discharge phase of the capacitor, thus providing a higher back bias voltage than is available from prior art circuits and wherein the charge pump capacitor is oriented in the circuit so that its source/drain terminal cannot conduct to the substrate by way of the parasitic diode therebetween.

REFERENCES:
patent: 4233672 (1980-11-01), Suzuki et al.
patent: 4259686 (1981-03-01), Suzuki et al.
patent: 4384218 (1983-05-01), Shimotori et al.
patent: 4403158 (1983-09-01), Slemmer
patent: 4454571 (1984-06-01), Miyashita
patent: 4455493 (1984-06-01), Morton et al.
patent: 4547682 (1985-10-01), Bialas, Jr. et al.
patent: 4559548 (1985-12-01), Iizuka et al.

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