Abstract: A touch sensor includes a transparent substrate, and an electrode pattern formed on the transparent substrate. The electrode pattern is formed by stacking at least two or more electrode layers, thereby enhancing the anti-corrosion and visibility of electrode patterns and ensuring the adhesive reliability of the transparent substrate and the electrode patterns.

Abstract: A method for manufacturing a nitride based single crystal substrate and a method for manufacturing a nitride based semiconductor device. The method for manufacturing the nitride based single crystal substrate includes forming a nitride based single crystal layer on a preliminary substrate; forming a polymer support layer by applying a setting adhesive material having flowability on the upper surface of the nitride based single crystal layer and hardening the applied adhesive material; and separating the nitride based single crystal layer from the preliminary substrate by irradiating a laser beam onto the lower surface of the preliminary substrate. The method for manufacturing the nitride based single crystal substrate is applied to the manufacture of a nitride based semiconductor device having a vertical structure.