A dielectric template layer is deposited on a substrate. The controllable skin texture surface may form part of a non-user interface portion or a user interface portion, such as a function key, keypad or other operational element of the device. Each bearing has an inner ring, an outer ring, and a plurality of balls between the inner ring and the outer ring, and slug ball separators between adjacent balls, and there is a mounting collar on the ball bearings. The test fluid flow rate through each of the nozzles is periodically determined based on the periodically sampled levels. The manufacturing method includes the steps of providing an insulated substrate, forming a TFT structure and a transparent electrode structure on the insulated substrate wherein the transparent electrode structure is connected to a sourcedrain region of the TFT structure, and forming a thin film structure including plural conductive beads on the transparent electrode structure. The support device has a different form depending upon the deflection of the valve rod.