Field effect transistor for microstrip mounting and microstrip-m

Details Field effect transistor for microstrip mounting and microstrip-m Field effect transistor for microstrip mounting and microstrip-m

1989-09-08

1991-02-26

James, Andrew J.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

357 68, 357 2314, 333247, H01L 2348, H01L 2944, H01L 2952, H01L 2960

Patent

active

049965824

ABSTRACT:
A field effect transistor chip for connection to a microstrip transmission line includes a semiconductor substrate, a field effect transistor formed in the substrate, source, gate, and drain electrodes disposed at least partially on the substrate, the gate and source electrodes forming an air bridge, and gate and drain beam leads extending from the substrate for electrical connection to the conductors of a microstrip transmission line. The microstrip transmission line includes dielectric substrates on which substantially uniform width conductors are disposed, the substrates being separated by a gap in which the transistor chip is disposed. The beam leads may be unitary with the electrodes of the chip or with the conductors of the transmission line.

REFERENCES:
patent: 3786375 (1974-01-01), Sato et al.
patent: 3982271 (1976-09-01), Olivieri et al.
patent: 4097890 (1978-06-01), Morris et al.
patent: 4733195 (1988-03-01), Tserng et al.
Bastida et al., "Airbridge Gate . . . Monolithic Circuits", IEEE Transactions on Electron Devices, vol. ED-32, No. 12, Dec. 1985, pp. 2754-2759.
Itoh et al., "Fabrication of . . . its Characteristics", IEICE Technical Report, vol. 88, No. 60, ED88-16 (1988), pp. 39-44.
Fink et al., "Electronics Engineers' Handbook", Second Edition, McGraw-Hill Book Company, pp. 7-80.

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