Large module including a circuit board for a peripheral circuit of the large module, and a peripheral circuit using the circuit board

摘要

The present invention smaller and lighter by lamination of a peripheral circuit of the drive circuit or the like on the power circuit, the low surge reduction and the capacity module is to be Hakaro a low loss, a power semiconductor element which is disposed on the power circuit reduction in the breakdown voltage between the junction adjacent an increase and the electrical resistance at the junction between the electrode terminal and the peripheral circuit of a power semiconductor device alignment of the electrode terminal and the peripheral circuit due to insufficient It wants to reduce the equal of the problem. A provided with a step on the surface of the peripheral circuit board, positioning of the terminal of the step and the power by contact with the side surface of the semiconductor device of the peripheral circuit board during lamination between the power circuit and the peripheral circuit electrodes and the power semiconductor element By performing more accurately, and to alleviate the above problems. .BACKGROUND