Multistage amplifier

Details Multistage amplifier Multistage amplifier

1992-11-24

1993-07-13

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Integrated circuits

330286, H03F 360

Patent

active

052277380

ABSTRACT:
A multistage amplifier for amplifying an input signal so as to output an amplified signal. The multistage amplifier is comprised of a plurality of transistors that are monolithically formed around a central VIA hole. Predetermined electrodes of the respective transistors are electrically connected to each other in the area immediately surrounding the central VIA hole and are connected to the VIA hole itself. This allows for a reduction of the number of VIA holes used over conventional methods. The distance between the central VIA hole and the predetermined electrodes of each of the transistors is minimal, as is the wiring pattern of each of the electrodes. No scattering is caused by the characteristics of the transistors, as they are monolithically formed in the same manufacturing process.

REFERENCES:
patent: 3969745 (1976-07-01), Blocker, II
patent: 4611184 (1986-09-01), Kumar
patent: 4837536 (1989-06-01), Honjo
Schellenberg et al., "A New Approach to FET Power Amplifiers," Microwave Journal 176, (1982), pp. 51-66.

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