Patent ID: 9018035
Filing Date: 2015-04-28
Classification: H01L

Abstract:
1. A method for manufacturing a pressed-contact type semiconductor device which has a semiconductor element, on an upper surface of which at least a first electrode is formed and on a lower surface of which at least a second electrode is formed, and a pair of lead frame members which face the first electrode and the second electrode of the semiconductor element respectively comprising: forming a metallic porous plating layer on a surface of at least one of the lead frame members, the metallic porous plating layer having a plurality of pores formed such that at least some of the plurality of pores are surrounded on all sides by metal of the metallic porous plating layer, the surface being to face the first electrode or the second electrode of the semiconductor element; and joining the metallic porous plating layer to the first electrode or the second electrode of the semiconductor element by a pressed contact, the first electrode or the second electrode being made to face the metallic porous plating layer; wherein a pore of the metallic porous plating layer has a shape in which a length in a pressed-contact direction is longer than a length in a direction that is perpendicular to the pressed-contact direction.