cooling of semiconductors

machine lighting electronics iron yellow light transistor mounted heat heating semiconductor elements concept semiconductors cooling convertor ac-dc dc electric-current amplifiers electronic-switching silicone semiconductor-materials output emitter-base-collector industrial electricity system background board capacitor circuit closeup component cooler device digital diode electric electrical electronic energy equipment hardware heat-sink industry metal mosfet mounted mounted- -cooler object power-electric power-electronic power-supply screw semiconductor silicon temperature transistor voltage watt power-transistors