A challenge of the present invention is to provide a system for controlling electric power steering which does not allow a pulsing motion to occur when a steering wheel W is positioned around the middle position. First, a first electrode is produced in a doped semiconductor substrate. A second optical element is in optical communication with said first optical element and is configured to diffuse light received from said first optical element to illuminate an indicia. A suitable dye can be added to the aqueous solution to color the wood product. A method for making a metal film by an atomic layer deposition process using a compound having formula is also provided.