Semicondutor device package placed within fitting portion of wiring member and attached to heat sink

摘要

The invention is to provide a semiconductor apparatus configured to position a semiconductor device reliably and easily without having a protruding portion formed in the bottom surface of the semiconductor device in the semiconductor apparatus. A semiconductor apparatus is fabricated by attaching a semiconductor device of a surface mount package type and a wiring member to a heat sink. A fitting portion in which the semiconductor device is fit is provided to the wiring member, so that the semiconductor device is positioned by fitting the semiconductor device into the fitting portion provided to the wiring member. According to the semiconductor apparatus of the invention, it becomes possible to position the semiconductor device at a high degree of accuracy.

主权项

1. A semiconductor apparatus, comprising:
a semiconductor device which is placed in a package to be attached to a surface of a heat sink, the package comprising suspension leads extending from opposing first side surfaces of the package, the suspension leads being asymmetrically arranged with respect to each of the opposing first side surfaces; and a wiring member which is attached to the heat sink and comprises a fitting portion having guide portions which comprise protrusions disposed close to corner portions of the fitting portion and engaging portions disposed between the protrusions to correspond to the suspension leads, wherein the package is guided into the wiring member in an orthogonal direction of the opposing first side surfaces by fitting the opposing first side surfaces onto the guide portions so that the opposing first side surfaces come into contact with the protrusions, the package is set onto the heat sink in an extending direction of the opposing first side surfaces by engaging the suspension leads, which are asymmetrically arranged, with respective engaging portions of the guide portions, to limit a movement of the package in the extending direction, the orthogonal direction of the opposing first side surfaces is a direction substantially perpendicular to the surface of the heat sink, and the extending direction of the opposing first side surfaces is a direction substantially perpendicular to the orthogonal direction.