EMCORE Corporation, Group4 Labs, and Air Force Research Laboratory Announce World's First GaN-on-Diamond Transistor
SOMERSET, N.J., Aug. 1 // -- EMCORE Corporation (NASDAQ:EMKR), a leading provider of compound semiconductor-based components and subsystems for the broadband, fiber optic, satellite, solar power and wireless communications markets, today announced that a team including EMCORE, Group4 Labs and Engineers at the U.S. Air Force Research Labs (AFRL) have demonstrated the world's first successful fabrication of operational gallium nitride (GaN)-on-Diamond High-Electron-Mobility-Transistor (HEMT) device. AlGaN/GaN epitaxial transistor layers were grown by metal-organic chemical vapor deposition (MOCVD) at EMCORE and atomically attached to chemically vapor deposited (CVD) diamond substrate by Group4 Labs. The AFRL team fabricated the transistors. This achievement highlights the feasibility of producing GaN-based radio-frequency (RF) devices closely thermally coupled to diamond substrates to maximize heat extraction from these devices. The team expects this technology to improve power density and efficiency of devices operating at high frequencies due to higher packing density and better heat dissipation in the immediate vicinity of the active device area. This novel process has a wide-range of possible applications, including high performance GaN-based RF devices, high brightness LEDs and Laser Diodes. This work was supported in part by a DARPA-funded Cooperative Agreement between EMCORE and AFRL.
"We are excited by the promise of this technology combining the most robust semiconductor material with the best heat spreader," commented Dr. Ivan Eliashevich, Director of R&D at EMCORE Corporation's EMD division. "Epitaxial wafers based on a GaN-on-Diamond platform should enable device manufacturers to push the limits of high-power performance and reliability across a wide range of applications."
About EMCORE
EMCORE Corporation offers a broad portfolio of compound semiconductor-based products for the broadband, fiber optic, satellite, solar power and wireless communications markets. EMCORE's Fiber Optic segment offers optical components, subsystems and systems for high-speed data and telecommunications networks, cable television (CATV) and fiber-to-the-premises (FTTP). EMCORE's Photovoltaic segment provides products for both satellite and terrestrial applications. For satellite applications, EMCORE offers high efficiency Gallium Arsenide (GaAs) solar cells, Covered Interconnect Cells (CICs) and panels. For terrestrial applications, EMCORE is adapting its high-efficiency GaAs solar cells for use in solar concentrator systems. Our Electronic Materials and Devices segment provides radio frequency (RF) transistor materials for high bandwidth wireless communications systems. Through its joint venture participation in GELcore, LLC, EMCORE plays a significant role in developing and commercializing next-generation High- Brightness LED technology for use in the general and specialty illumination markets. For further information about EMCORE, visit www.emcore.com/ .
About Group4 Labs
Group4 Labs, LLC (Menlo Park, CA) is an extreme materials company founded in April 2003. The privately-held company develops and manufactures extreme semiconductor materials for a wide variety of applications in the advanced electronics and photonics industries. For more information, please visit www.Group4Labs.com
About AFRL
U.S. Air Force Research Laboratory (AFRL/SNDD)(WPAFB, OH) conducts basic research and exploratory development programs in the areas of high speed digital devices, microwave and millimeter wave power devices and wide bandwidth amplifiers to meet unique Air Force needs for aerospace radar, electronic warfare and communication systems. For more information, please visit afrl.af.mil/sn/snd/sndd.html .
Source: EMCORE Corporation
CONTACT:
Michael Herman,
Director of Sales,
Electronic Materials Division of EMCORE,
+1-732-271-9090 ext. 4006,
info@EMCORE.com
Web site: www.emcore.com/
http://www.group4labs.com/
http://afrl.af.mil/sn/snd/sndd.html
