Development of a semiconductor switch for high power copper vapor lasers

A semiconductor switch utilizing 2.5 kV, 1 kA flat packaged IGBTs, twenty pieces connected in series and two in parallel, was developed for high power copper vapor laser (CVL) excitation. Its voltage and current ratings are 31 kV and 2600 A, respectively. Since the flat packaged IGBT has no internal wiring, it is considered inherently suitable for the… (More)