Thermal modeling of GaN HEMTs on sapphire and diamond
Salm, Roman Peter.
Weatherford, Todd R.
Parker, Andrew A.
MetadataShow full item record
Wide bandgap semiconductors have entered into Naval radar use and will eventually replace vacuum tube and conventional solid-state amplifiers for all modern military radar and communications applications. Gallium Nitride (GaN) High Electron Mobility Transistors (HEMTs) are on the leading edge of wide bandgap technology and have the performance characteristics to dominate in high power â high bandwidth applications. The Defense Advanced Research Projects Agency (DARPA), Office of Naval Research (ONR) and Missile Defense Agency (MDA) are all sponsoring research projects to apply wide bandgap technology. This thesis studies the effects of changing the substrate material of an existing GaN HEMT from sapphire to diamond through the use of commercially available Silvaco software for modeling and simulation. The unparalleled thermal properties of diamond are expected to dramatically decrease device temperatures and increase component lifetimes and reliability.
Showing items related by title, author, creator and subject.
Kroll, Darwin E (Monterey, California. Naval Postgraduate School, 1997-03);The high thermal conductivity of chemically vapor deposited CVD diamond (up to 2000 W/m/K) and its low dielectric constant (approx. 5.6) makes it highly desirable for use as an electronics packaging substrate material. To ...
Davis, Hugh Miller, Jr. (Monterey, California. U.S. Naval Postgraduate School, 1966-05);Calculations have been made in an attempt to predict the effects of microscopically fine twinning and of stacking faults on the x-ray diffraction patterns which can be expected from single crystals of materials having the ...
Chang, Wen-Huan (Monterey, California. Naval Postgraduate School, 1994-06);A flow visualization study of the vortical flow over a baseline double-delta wing model and a diamond-fillet double-delta wing model both with sharp leading edges was conducted in the Naval Postgraduate School water tunnel ...