In a powder module (111), a free-wheeling diode (1A), an IGBH (1B), and a capacitor (20) for smoothing direct current are disposed directly on a surface (2BS) of a conductive heat sink (2B) with through holes (2BH). The rear electrodes of the free-wheeling diode (1A), the IGBT (1B), and the capacitor...http://www.google.de/patents/US6501172?utm_source=gb-gplus-sharePatent US6501172 - Power module
