A method, apparatus and computer-readable medium for improving push-to-talk call setup speed by disabling an idle mode of a mobile station are provided. The gate stack includes a first copper layer over the substrate, a copper oxide layer over the first copper layer, and a second copper layer over the copper oxide layer. The outer diameters \u03c6d1 and \u03c6d2 satisfies: \u03c6d1<\u03c6d2. The probes are connected to the fine pitch contacts and are used to apply the test signals to a DUT by contacting its pads. Illumination light L2 introduced into the guide plate escapes gradually from the back face and the illumination output face on the way of propagation. Next, an adhesive tape is attached to the other surface of the base frame, and subsequently a cut portion is provided at a portion corresponding to a region between two adjacent partitioned regions for resin-molding, of the adhesive tape.