Patent ID: 9263561
Filing Date: 2016-02-16
CPC Classification: H01L

Claim Text:
1. A semiconductor device, comprising: a semiconductor chip having a main surface, and a back surface opposite to the main surface, and having a first terminal on the main surface side, and a second terminal on the back surface side; and a metal plate electrically coupled to the first terminal of the semiconductor chip via a solder, wherein the semiconductor chip includes: a semiconductor substrate; an interlayer insulation film formed over the semiconductor substrate; a first conductive film pattern for the first terminal, formed over the interlayer insulation film; an insulation film formed over the interlayer insulation film in such a manner as to cover the first conductive film pattern; a first opening for the first terminal formed in the insulation film, and for exposing apart of the first conductive film pattern; and a first nickel film formed over the first conductive film pattern at a portion thereof exposed from the first opening, wherein a semiconductor element for controlling the conduction between the first terminal and the second terminal is formed at the semiconductor substrate, wherein the first terminal is formed of the first conductive film pattern and the first nickel film, wherein the first conductive film pattern is formed of a lamination film having a first conductor film containing aluminum as a main component, and a second conductor film formed over the entire top surface of the first conductor film, wherein the first nickel film is formed over the second conductor film at a portion thereof exposed from the first opening, and wherein the second conductor film is formed of a titanium film, a tungsten film, or a titanium tungsten film.