A method and system for detecting radio link failures between a wireless transmitreceive unit and a Node-B are disclosed. The present invention includes a metal foil with an electrical resistance layer including a metal foil having a surface of a ten-point mean roughness Rz, which is measured by an optical method according to 1 \u03bcm or less and the surface being treated by irradiation with ion beams at an ion beam intensity of 0. 3\u2266tcenTlg\u22661 are satisfied when the thickness in the direction perpendicular to the light exit surface is defined as Tlg and the thickness at the center of the second layer is defined as Tcen. The verification code is sent to each of the media providing devices for verification. A substrate processing apparatus for processing a substrate by feeding a processing liquid comprises: a temperature regulator to regulate the temperature of said processing liquid; and a underplate temperature adjuster to adjust the temperature of an underplate which is placed in proximity to the backside surface of said substrate W.