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This application note describes a mounting method for a 90–Watt power device. This mounting methodology is recommended for any ceramic/metal flange device with similar materials and construction (copper tungsten flange with ceramic insulator and Alloy–42 leads) and up to 90 Watts output power. This mounting method involves bolt–down of the CuW flange to a heatsink with the leads soldered to a printed circuit board (PCB).