To provide a composition for forming a dielectric layer excellent in dielectric constant and withstand voltage properties, a MIM capacitor and a process for its production. The computer program may categorize a window by consulting one or more lists. A processor or intelligent analysis unit then receives the shaving signal and determines what shaving changes should be made. A coupling mechanism interconnects the handle to the first pole member which permits the first pole member to be selectively rotated without rotating the handle so that the control switch on the handle is always located in a convenient position. The form roller has a diameter smaller than a diameter of the cylindrical bore of the workpiece and is adapted for forming a plurality of microscopic recesses on the circumferential surface defining the cylindrical bore of the workpiece.