Hybrid transistor

Details Hybrid transistor Hybrid transistor

1975-03-03

1976-07-13

James, Andrew J.

357 68, 357 80, H01L 2702, H01L 2348, H01L 3902

Patent

active

039697525

ABSTRACT:
A transistor having input, reference and output terminals includes a ceramic base with a metallized area plated thereon and a transistor die supported on the metallized area. The metallized area and the transistor die provide in an equivalent output circuit of the transistor a shunt capacitance which in combination with other characteristics in the equivalent output circuit adversely affects the output impedance, internal losses, and bandwidth of the transistor. A reactance branch including an inductor is connected between the metallized area and the reference terminal to provide in the equivalent output circuit an inductance which resonates with the shunt capacitance. By thus reducing the influence of the shunt capacitance in the equivalent output circuit, the reactance branch increases the output impedance, decreases the internal losses, and increases the bandwidth of the transistor.

REFERENCES:
patent: 3713006 (1973-01-01), Litty et al.
patent: 3728589 (1973-04-01), Caulton

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