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Miniature hybrid microwave ICs using a novel thin-film technology

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4 Author(s)
Eda, K. ; Matsushita Electr. Ind. Co. Ltd., Osaka, Japan ; Miwa, T. ; Taguchi, Y. ; Uwano, T.

A novel thin-film technology for miniature hybrid microwave ICs is presented. All passive components, such as resistors and capacitors, are fully integrated on ordinary alumina ceramic substrates using the thin-film technology with very high yield. The numbers of parts and wiring processes were significantly reduced. This technology was applied to the fabrication of Ku-band solid-state power amplifiers. This thin-film technology offers the following advantages: (1) a very high yield fabrication process for thin-film capacitors having excellent electrical characteristics in the gigahertz range (ε=3.6, Q=230 at 12 GHz) and reliability; (2) two kinds of thin-film resistors having different temperature coefficients of resistivity (TCRs) and a lift-off process to integrate them with thin-film capacitors; and (3) a matching method using the thin-film capacitor

Published in:

Microwave Theory and Techniques, IEEE Transactions on  (Volume:38 ,  Issue: 12 )

Date of Publication:

Dec 1990

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