Proton-irradiation technology for high-frequency high-current silicon welding diode manufacturing

Different proton irradiation regimes were tested to provide more than 20 kHz-frequency, soft reverse recovery snap-less behavior, low forward voltage drop and leakage current for 50 mm diameter 7 kA/400 V welding diode Al/Si/Mo structure. Silicon diode with such parameters is very suitable for high frequency resistance welding machines of new generation for robotic welding.