A 10kWatt 36GHz Solid-State Power Amplifier using GaN-on-Diamond, Phase I

This Phase-I SBIR proposal proposes for the first time ever, the use of a new class of materials - Gallium Nitride-on-diamond - in the manufacture of very high power, high-temperature, Ka-band solid-state MMICs. In this particular Phase-I, the first ever 34-38GHz GaN-on-Diamond FETs will be demonstrated, exhibiting a record 5-10 W/mm at record efficiency and temperature levels. Arrays of these FETs will be used to form 10KWatt Power Amplifiers (PA) MMICs in Phase-II. Polycrystalline free standing CVD diamond -- nature's most efficient thermal conductor -- enables nearly perfect heat extraction from a "hot" device (Thermal conductivities of GaAs, Si, and SiC are 35W/m/K, 150W/m/K and 390W/m/K respectively; diamond ranges from 1200-2000 W/m/K depending on quality). In the proposed scheme, the device's active epitaxial layers are removed from their original host substrate and transferred to a specially treated low-cost CVD diamond substrate using a proprietary low-cost manufacturable scheme. The active junction rests just 20-nm from diamond. The semiconductor-on-diamond technology proposed here may be applied to GaAs, SiC, SiGe, etc. at up to 8" in wafer diameter.

This is a mature technology (TRL 7+) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

None of these are guaranteed paths for this specific project — TechPort itself doesn't have an "apply" button. Reaching out to the contact(s) above with a specific question is usually the fastest way to find out what's actually open.