Patent ID: 6800934
Filing Date: 2004-10-05
Classification: H01L,H05K

Abstract:
A power module having a plurality of power devices arranged in parallel with each other and switched by gate signals with substantially equal electric potential, comprising:a collector electrode pattern; first and second power devices provided on the collector electrode pattern, each having a collector electrode connected to the collector electrode pattern; an emitter electrode pattern provided along the collector electrode pattern and having an emitter lead; and first and second connection wires configured to connect emitter electrodes on the first and second power devices and the emitter electrode pattern, respectively; wherein an inductance component of at least one of the first and second connection wires is adjusted by making the second connection wires longer than the first connection wires so that an inductance component between the emitter electrode on the first power device and the emitter lead is substantially equal to that between the emitter electrode on the second power device and the emitter lead.