noun
power semiconductor
Technical term in electronics for a semiconductor device designed to handle high power levels, such as in power conversion or motor control.
パワー半導体は電気自動車のインバーターに使われている。
Power semiconductors are used in the inverters of electric vehicles.
Compound of パワー (power) and 半導体 (semiconductor). The exact derivation is straightforward; the term is a modern technical coinage.