Halbleitervorrichtung montiert auf einem Substrat

摘要

A semiconductor device comprises a semiconductor chip; a resin package body (11) for accommodating the semiconductor chip; a plurality of interconnection leads (14) provided on the resin package body along a lower edge of the package body such that the interconnection leads project outward from the lower edge; and a heat dissipation lead (31) held on the resin package body for dissipating heat generated by the semiconductor chip. The heat dissipation lead (31) comprises a plate of a heat conducting material having a stage part and a heat sink part, wherein the stage part is held inside the resin package body and supporting the semiconductor chip thereon, while the heat sink part projects outward from the resin package body and including a part that extends in a downward direction. The heat sink part has a lower edge (31a) that is formed at a level substantially flush with the outer lead part of the interconnection leads such that the semiconductor device is held upright, when placed on the substrate, by the outer lead part of the interconnection leads and by the lower edge of the heat sink part of the heat dissipation lead.