Patent ID: 7791153

Claim:
A semiconductor device comprising: a substrate; a base film formed over a surface of the substrate; an element layer formed over the base film; and an insulating layer formed over the element layer; wherein the element layer includes a plurality of thin film transistors and an antenna which is electrically connected to at least one of the plurality of thin film transistors, wherein the antenna is arranged to receive an electromagnetic wave to generate a voltage which is used to operate the plurality of thin film transistors, wherein each of side surfaces of the substrate, the base film, the element layer, and the insulating layer has a curved shape, wherein a bottom surface of the base film, which is in contact with the surface of the substrate, has a larger area than a top surface of the base film, wherein a bottom surface of the element layer, which is in contact with the top surface of the base film, has a larger area than a top surface of the element layer, and wherein a bottom surface of the insulating layer, which is in contact with the top surface of the element layer, has a larger area than a top surface of the insulating layer.