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Microwave GaAs Integrated Circuits On Quartz SubstratesIntegrated circuits for use in detecting electromagnetic radiation at millimeter and submillimeter wavelengths constructed by bonding GaAs-based integrated circuits onto quartz-substrate-based stripline circuits. Approach offers combined advantages of high-speed semiconductor active devices made only on epitaxially deposited GaAs substrates with low-dielectric-loss, mechanically rugged quartz substrates. Other potential applications include integration of antenna elements with active devices, using carrier substrates other than quartz to meet particular requirements using lifted-off GaAs layer in membrane configuration with quartz substrate supporting edges only, and using lift-off technique to fabricate ultrathin discrete devices diced separately and inserted into predefined larger circuits. In different device concept, quartz substrate utilized as transparent support for GaAs devices excited from back side by optical radiation.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Siegel, Peter H.
Mehdi, Imran
Wilson, Barbara
Date Acquired
August 16, 2013
Publication Date
June 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 6
ISSN: 0145-319X
Subject Category
Electronic Components And Circuits
Report/Patent Number
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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