GaN Isn’t Replacing Silicon: ST Is Building AI Power Systems With Si, SiC and GaN

GaN Isn’t Replacing Silicon: ST Is Building AI Power Systems With Si, SiC and GaN STMicroelectronics is developing next-generation AI data-center infrastructure around a combination of silicon, silicon carbide and gallium nitride rather than betting on a single semiconductor technology. Its emerging 800-VDC architecture uses SiC for demanding high-voltage conversion, GaN for compact high-frequency conversion…

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Qorvo Pushes X-Band GaN Power Density Beyond 400% in DARPA Program

Qorvo Pushes X-Band GaN Power Density Beyond 400% in DARPA Program Qorvo has achieved more than a 400% increase in X-band GaN transistor RF power density through research funded by DARPA’s THREADS program. Rather than simply increasing transistor output, the project attacks one of high-power RF electronics’ fundamental limitations: heat generated within the transistor itself….

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