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500 kW/l power density: New SiC inverter from Fraunhofer IZM

(Image: Fraunhofer IZM / Volker Mai) Fraunhofer IZM has developed an inverter for electric drives that processes 500 kilowatts of power in a volume of one liter – many times more than conventional alternatives. The inverter, developed for Mitsubishi Heavy Industries (MHI), achieves an efficiency of 99 percent.

Monolithic CMOS-MEMS Multi-Parameter Gas Detection SoC with Low Power and High Sensitivity

This work presents a monolithic CMOS-MEMS multi-parameter gas detection system-on-chip (SoC), integrating a metal-oxide gas sensor, a piezoresistive flow sensor, and signal conditioning circuit. The stacked integration architecture enables compact system design. The optimized fabrication process parameters, including the sputtering atmosphere for SnO2 sensing layer and implantation method for piezoresistors, further enhance sensitivity. The microbridge structure of the gas sensor, combined with the working principle of the piezoresistive flow sensor, enables low-power operation. Furthermore, an on-chip signal conditioning circuit is monolithically integrated to enhance signal quality. Experimental results show that the proposed SoC exhibits gas sensitivity (Ra/Rg) of 4.2 at 60 ppm H2 and flow sensitivity of 49 mV/(L/min) at 1.6 L/min with power consumption below 20 mW. These results highlight the potential of the proposed SoC as a high-sensitivity and low-power gas detection solution for hydrogen energy applications.

Xanadu and EV Group partner to advance photonic quantum chip manufacturing - New Electronics

Xanadu Quantum Technologies and semiconductor equipment supplier EV Group (EVG) have announced a strategic partnership.