Heterogeneous Integration of Terahertz Diode Circuits

We present an overview of the research made on integrated diode circuits for terahertz applications. This includes progress on heterogeneous integration of heterostructure barrier varactor multipliers and Schottky diode mixers on silicon substrate. The described technology uses silicon-on-insulator (SOI) substrates, for which accurate and well defined substrate thickness for the microstrip circuitry is obtained