TECHNOLOGY FOCUS - POLYMERS - Preferred Tape: The tape has a maximum resistance value of less than or equal to 0.1 Omega in a first cycle and rate of increase in resistance value of less than or equal to 100% each determined by a Heat Cycle Test. The adhesive layer of the tape is attached to silver plated material to be an attachment size of area of 10 mm2, and an electrical current is applied to the tape containing the attachment part and the silver plated material at a constant current of 2A. The tape with the silver plated material is placed in a constant temperature chamber. In the chamber, the temperature is decreased from 25 to -40 degrees C, then maintained at -40 degrees C for 10 minutes, next increased to 85 degrees C, maintained for 10 minutes, and decreased to 25 degrees C. This temperature control is regarded as one cycle and repeated in the chamber. The tape with the silver plated material in the chamber is cooled and heated in accordance with the repeated cycles, and the resistance value of the attachment part is continuously determined during the cycles. The rate of increase in resistance value is calculated using a formula as given in the specification from a maximum resistance value in 200th cycle and maximum resistance value in a first cycle. The pressure-sensitive adhesive layer has a thickness of 10-100 mu m. The adhesive layer is composed of a pressure-sensitive adhesive composition including the electroconductive filler, and the electroconductive filler has a content of 25-250 parts by weight with respect to the total solid content of the pressure-sensitive adhesive composition other than the electroconductive filler. The adhesive layer is composed of a pressure-sensitive adhesive composition including an acrylic polymer as a base polymer. The tape has a width of greater than or equal to 1 to less than or equal to 10 mm. The surface of the adhesive layer has a 180 degree peel adhesion of greater than or equal to 0.1 N/2mm with respect to an aluminum plate measured at a tensile speed of 300 mm/min. EXAMPLE - No suitable example given.