Patent ID: 8253236
Filing Date: 2012-08-28
Classification: H01L,H05K,Y02P

Abstract:
1. A power semiconductor device comprising: a plurality of AC-side cylindrical external terminal communication sections that are arranged two-dimensionally on wiring patterns; a plurality of DC-side cylindrical external terminal communication sections that are arranged two-dimensionally on the wiring patterns; and power semiconductor elements electrically conductive with the plurality of AC-side cylindrical external terminal communication sections and the plurality of DC-side cylindrical external terminal communication sections, the plurality of AC-side cylindrical external terminal communication sections, the plurality of DC-side cylindrical external terminal communication sections, and the power semiconductor elements, all being sealed with transfer molding resin, the AC-side and DC-side cylindrical external terminal communication sections having holes formed at a top surface of the transfer molding resin, and the AC-side cylindrical external terminal communication sections being connected to an AC-side external terminal, the DC-side cylindrical external terminal communication sections being connected to a DC-side wiring substrate, wherein the AC-side cylindrical external terminal communication sections are connected to a connection between a negative electrode of a positive-electrode-side power semiconductor element from among the power semiconductor elements and a positive electrode of a negative-electrode-side power semiconductor element from among the power semiconductor elements, a plurality of connecting pins to be connected to the AC-side cylindrical external terminal communication sections are two-dimensionally provided in a plate portion of the AC-side external terminal; the DC-side cylindrical external terminal communication sections include a plurality of positive-electrode-side cylindrical external terminal communication sections and a plurality of negative-electrode-side cylindrical external terminal communication sections, the positive-electrode-side cylindrical external terminal communication sections are connected to a positive electrode of the positive-electrode-side power semiconductor element, and the negative-electrode-side cylindrical external terminal communication sections are connected to a negative electrode of the negative-electrode-side power semiconductor element, the DC-side wiring substrate is formed by integrating a positive-electrode-side wiring board and a negative-electrode-side wiring board with an insulation layer interposed therebetween, the positive-electrode-side wiring board being connected to the positive-electrode-side cylindrical external terminal communication sections via connecting pins, and the negative-electrode-side wiring board being connected to the negative-electrode-side cylindrical external terminal communication sections via connecting pins, and a plurality of connecting pins to be connected to the DC-side cylindrical external terminal communication sections are provided two-dimensionally in a plate portion of the DC-side wiring substrate formed by said integrating.