In a first aspect, a small lot size lithography bay is provided. A MAC address is provided, and capacities of a first column and a second column corresponding to a first index in a MAC table are checked. A PWB side wiring on the printed wiring board is electrically connected to element side wirings by anisotropic conductive films. The lateral supports may extend in a generally horizontal plane or may extend in an upward or downward direction out of the horizontal plane.