Patent ID: 7279791

Claim:
A semiconductor device comprising: a substrate; a first insulation film formed on the substrate; a first conductive layer formed on the substrate with the first insulation film positioned between the substrate and the first conductive layer; a second conductive layer formed on the substrate at a predetermined distance from the first conductive layer; a diffusion protection film formed on upper surfaces of the first conductive layer, the second conductive layer, and the first insulation film, the diffusion protection film is made of SiC; a second insulation film formed on upper surfaces of the diffusion protection film, the first conductive layer and the second conductive layer and having a plurality of first opening portions to expose either the first conductive layer or the second conductive layer and one or more second opening portions to expose neither the first conductive layer nor the second conductive layer and expose the first insulation film; and a third conductive layer formed on an upper surface of the second insulation film in such a manner to fill up the first opening portions and the second opening portions for making electrical connection between the first conductive layer and the second conductive layer by way of the first opening portions; wherein, the second opening portions are formed between a pair of the first opening portions along the third conductive layer, the second insulation film is formed by a low dielectric constant material having a lower Young's modulus than that of a SiO2 film, and third opening portions are formed at predetermined distances of about 100 μm between each other and between the first and second opening portions along the length of the third conductive layer.