An information processing system has a first information processing device having a first wireless communicator for receiving and sending data information from and to a base station by wireless communication and a display for displaying first level information. Accept from successively arranged cleaning stages is lead towards the outlet, while the respective rejects are lead to the inlet of the succeeding cleaning stage. After the line has been thus disconnected, a planarization insulating film is formed, and this film fills the holes caused by the laser irradiation.