Patent ID: 7825498
Filing Date: 2010-11-02
Classification: H01L

Abstract:
1. A semiconductor device comprising: a resin substrate; an island provided on a first surface of the substrate; a semiconductor chip die-bonded onto the island; an internal terminal provided on the first surface of the substrate and electrically connected to the semiconductor chip; an external terminal provided on a second surface of the substrate opposite from the first surface in opposed relation to the internal terminal; an inter-terminal connection via extending through the substrate from the first surface to the second surface of the substrate to connect the internal terminal to the external terminal in an electrically conductive manner; a thermal pad provided on the second surface of the substrate in opposed relation to the island; a heat conduction portion extending through the substrate from the first surface to the second surface of the substrate to connect the island to the thermal pad in a thermally conductive manner; a solder resist portion provided on the second surface of the substrate and having a heat dissipation opening which defines a gap with respect to an outer periphery of the thermal pad and a terminal opening which exposes the external terminal; and a thermal terminal being in contact with the thermal pad, wherein the gap encompasses an entire periphery of the thermal pad and exposes both an edge side surface of the thermal pad and the second surface of the substrate, and a sum of a height of the thermal pad and a height of the thermal terminal is substantially equal to a height of the external terminal.