The invention includes a semiconductor construction. When worn by the user and inflated, the two inflatable chambers exert pressure upon the upper and lower portions of the lumbar vertebrae. The support can be moved in the vertical direction with respect to the drain opening in the base of a storage tank by means of an electric drive. An initial irrigation fluid pressure is determined and the irrigation fluid flow and aspiration fluid flow are adjusted based upon the initial determination. The sacrificial layer is etched away to release a multilayer structure of the cubic semiconductor layer and the 3C\u2014SiC layer from the substrate. The error data is obtained by calculating the difference between a predetermined value corresponding to the dot pattern, and the error-corrected data.