| 摘要 |
PURPOSE: An aluminum base plate for a power module is provided to reduce the weight and costs of the power module by using aluminum for a base plate. CONSTITUTION: A direct bonded copper (DBC) substrate (20) is combined with a power switching device (10) by a soldering operation. An aluminum base plate (30) is combined with the DBC substrate by the soldering operation. The aluminum base plate is composed of a top copper layer (32), an aluminum layer (31), and a bottom copper layer (33). A heat sink (40) receives heat from the power switching device through the DBC substrate and the aluminum base plate. The aluminum base plate is integrated with the heat sink. |
