A physical identification data addressing method using a wobble signal, a wobble address encoding circuit, method and circuit for detecting the wobble address and a recording medium therefor. Openings in the stabilization layer enable electrical connection between the antenna pads of the RFID IC and the terminals of the inlay antenna or strap contacts through bumps formed on the antenna pads, through a conductive redistribution layer formed on the stabilization layer, or through a capacitive connection to the inlay antenna or strap. To alleviate this problem, during electroplating or annealing of the pole piece a magnetic field is applied to the pole tip in a direction which is out-of-plane from the substrate but in-plane with a side wall of the pole tip which vertically projects from the substrate. In the support film and in the second conductive electrode film, openings have been punched, whose center points are the same as the center points of the openings in the first electrode film.