Patent ID: 7393236
Filing Date: 2008-07-01
Classification: H01L,H05K

Abstract:
1. An electrical system comprising: an electrical power transistor device having a case, a conductive portion of the case, and an output pin, the conductive portion of the case corresponding to an output node for an output signal, and the output pin corresponding to the output node for the output signal; an electrically and thermally conductive bus bar having a device contact surface and a thermal conduction heat transfer surface, the device contact surface being coupled to the conductive portion of the case of the electrical power transistor device to establish electrical contact therewith, and the bus bar being configured to conduct heat from the electrical power transistor device; and a circuit board assembly having a first electrically conductive interface trace formed on a first side thereof, and a second electrically conductive interface trace formed on a second side thereof, the first electrically conductive interface trace and the second electrically conductive interface trace being electrically coupled together, the circuit board assembly being coupled to the bus bar such that the first electrically conductive interface trace contacts an edge of the bus bar to form an electrical connection with the edge of the bus bar, and the second electrically conductive interface trace being electrically connected to the output pin of the electrical power transistor device such that the conductive portion of the case, the output pin, the bus bar, the first electrically conductive interface trace, and the second electrically conductive interface trace all correspond to the output node.