Patent ID: 7709306

Claim:
A method for forming on a substrate an electronic device including at least one electrically conductive material and one semiconductive material, the materials being deposited onto the substrate from respective liquids, the method comprising: forming on the substrate a surface energy pattern that defines a first area of the substrate, a second area of the substrate spaced apart from the first area of the substrate by a spacing area, and a third area of the substrate at least partly overlapping the first area, the second area and the spacing area; and subsequently: depositing the electrically conductive material on the substrate by applying the liquid comprising the electrically conductive material over the substrate; and depositing the semiconductive material on the substrate by applying the liquid comprising the semiconductive material over the substrate; wherein the surface energy pattern is such as to localise the electrically conductive material to the first and second areas and to localise the semiconductive material to the third area; and the semiconductive material is deposited so as to extend over the third area continuously between the conductive material in the first area and the conductive material in the second area.