An On-Chip SiC MEMS Device with Integrated Heating, Sensing, and Microfluidic Cooling Systems

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Journal Article
Advanced Materials Interfaces, 2018, 5 (20)
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© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim There has been increasing interest in electronic systems with integrated microfluidic active cooling modules. However, the failure of 3C-SiC/Si interface with increasing temperature has prevented the development of 3C-SiC power electronic devices. Here, all integrated transparent heating, sensing, and cooling systems are developed on a single silicon carbide (SiC) chip for efficient thermal management. SiC nanofilms are grown on a silicon wafer, are transferred to a glass substrate, and then a micro electromechanical system process is employed to fabricate a SiC-on-glass system with integrated heaters and temperature sensors. A cooling system is fabricated with microchannel using 3D printing, molding, and plasma assisted bonding. The thermal management of the SiC-based system shows an excellent capability of heating and detecting temperature as well as effective cooling with an efficiency of from 0.24 to 0.28 and a maximum cooling rate of 0.1 K(µL min−1)−1. The fabrication strategy can be utilized for large production of SiC power nanoelectronics with high efficiency of integrated thermal management systems.
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