HexaTech Technology

Advanced semiconductor materials pave the way for novel applications in both new and existing market segments. Central North Carolina has a proven track record as a premier innovation center for advanced materials and information technology with a storied list of successful start-ups including RF Micro Devices and Cree. RFMD harnessed the performance of gallium arsenide (GaAs) to become a dominant supplier of RF integrated circuits for cellular handsets; Cree perfected silicon carbide (SiC) technology to lead the explosive growth in LED lighting.

HexaTech is the recognized world leader in the development and commercialization of the next-generation semiconductor, aluminum nitride (AlN). This wide bandgap semiconductor offers unique materials properties that enable the fabrication of first-in-kind devices for clean water applications, and for power conversion of alternative energy sources.

We have developed a proprietary crystal growth process that yields single crystalline AlN boules ideally suited for the fabrication of high-quality AlN wafers. High-performance AlGaN semiconductor devices currently face a crucial challenge in terms of achievable device quality. Fabricating these devices on lattice-matched, highly thermally conducting, single crystalline AlN wafers enables sophisticated, next-generation AlGaN-based devices with vastly superior performance and device lifetimes.

To address new market opportunities, HexaTech is developing several product lines:

HexaTech AlN boules

AlN Wafers

To accelerate the development of next generation UV-C LEDs, lasers and high-voltage power devices, HexaTech is providing its world-leading AlN material to customers worldwide. By delivering substrates with 10,000 to 1,000,000 times fewer defects than competing technologies, HexaTech's AlN wafers enable breakthrough performance in the fabrication of high Al content AlGaN-based devices.

HexaTech AlN wafers

Ultraviolet LEDs

Nitride LEDs based on AlN substrates are capable of generating light in the UV-C band (200 nm to 280 nm). UV-C light near 265 nm efficiently breaks up DNA and de-activates bacteria and viruses in water and on surfaces. UV-C LEDs operating in this wavelength range enable a new generation of products in disinfection, water purification and healthcare applications.

Power Conversion Devices

High electron mobility transistors (HEMTs) and high performance Schottky diodes are needed for efficient power conversion. Whether converting between AC and DC or shifting voltages up or down, power conversion applications are ubiquitous. For applications such as hybrid vehicles and wind/solar electricity generation power conversion efficiency is absolutely critical. AlN-based devices hold the promise of providing the ultimate in highly efficient power conversion.

HexaTech R&D