| 摘要 |
PURPOSE:To prevent the deterioration due to a stress and to improve the reliability of a device making the force from an externally draw electrode uniformly effect on a metal electrode layer and an insulation layer by mounting a semiconductor element on the metal electrode layer provided on the insulation layer and by providing the externally drawn electrode on a metal plate. CONSTITUTION:An electrode plate 9 is provided between an electrode 4 and a metal electrode layer 3. This makes the external fore effected on the electrode 4 is, at first, transmitted to the electrode plate 9. The force effected on the metal electrode layer 3 and an insulation layer 2 is made nearly uniform on all the surface by the existence of the electrode plate 9 and the maximum load effected on a unit area is made sufficiently small. Accordingly, the deterioration of insulation can be prevented since the maximum load effected on the insulation layer 2 is made small. |
