Patent ID: 8039836

Claim:
A semiconductor device formed on a substrate surface of a substrate that causes either thermal shrinkage or thermal expansion in in-plane directions of the substrate, wherein the substrate comprises a polymer resin and the polymer resin has anisotropy of either a thermal shrinkage rate or a coefficient of thermal expansion when causing either the thermal shrinkage or the thermal expansion, wherein the semiconductor device comprises as an active layer an amorphous transparent oxide semiconductor selected from the group consisting of In—Ga—Zn—O, In—Ga—Zn—Sn—O, Ga—Zn—Sn—O, In—Sn—Zn—O, In—Zn—O and In—Sn—Sb—O, and wherein the direction in which either the thermal shrinkage rate or the coefficient of thermal expansion of the substrate is largest is nonparallel to the direction of a current flowing through the active layer of the semiconductor device.