Patent ID: 7691685

Claim:
A method for manufacturing a semiconductor device comprising: forming a base layer comprising a photocatalyst material on an insulating surface of a substrate, wherein the photocatalyst material is selected from the group consisting of titanium oxide (TiO x ), strontium titanate (SrTiO 3 ), cadmium selenide (CdSe), potassium tantalate (KTaO 3 ), cadmium sulfide (CdS), zirconium oxide (ZrO 2 ), niobium oxide (Nb 2 O 5 ), zinc oxide (ZnO), iron oxide (Fe 2 O 3 ) and tungsten oxide (WO 3 ); forming a first conductive film pattern by discharging a conductive material containing a photosensitive material on the base layer by droplet discharging; selectively exposing the first conductive film pattern to laser light; and forming a second conductive film pattern by developing the exposed first conductive film pattern.