Amplifiers – Signal feedback – Combined with control of bias voltage of signal amplifier
Patent
1974-01-02
1976-04-27
Rolinec, R. V.
Amplifiers
Signal feedback
Combined with control of bias voltage of signal amplifier
330 38M, 357 14, 357 23, 357 44, 357 48, H01L 2702
Patent
active
039538753
ABSTRACT:
A stabilizing circuit which increases the effective value of a capacitor and the structure of a monolithic capacitor are disclosed. The stabilizing circuit includes a transistor having a base electrode connected to the capacitor and an emitter electrode connected to a point at which it is desired to provide an increased effective capacitance. The capacitor structure is suitable for being included in monolithic integrated circuits having diffused isolation regions. A first plate of the capacitor is formed by a metallization layer, the second plate of the capacitor may be formed by an emitter diffusion into the isolation diffusion. A base diffusion which is conductively connected to the emitter diffusion and to the isolation diffusion facilitates connection of the second plate of the capacitor to the substrate.
REFERENCES:
patent: 3320484 (1967-05-01), Riley et al.
patent: 3553609 (1971-01-01), Edge
patent: 3560278 (1971-02-01), Sanera
patent: 3702405 (1972-11-01), Zwirn
R. Hibberd - Integrated Circuits, McGraw-Hill- 1969, Texas Instruments, Ltd., pp. 38-40.
Cave David L.
Davis Walter R.
Bingham Michael D.
Dahl Lawrence J.
Jones, Jr. Maurice J.
Motorola Inc.
Rolinec R. V.
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