Method and apparatus for providing a controlled voltage to an integrated circuit is described. Routability zones are created between each successive pair of groups. The adhesive agent includes a acrylate copolymer having a weight-average molecular weight of not less than 30,000, an epoxy resin having a weight-average molecular weight of 100 to 10,000, a photopolymerizable low molecular compound and thermal activation latent epoxy resin curing agent. Its use reduces the overall thickness of the telephone and makes it easier to handle. The pitch between each of the inner plates and each of the outer plates is adjustable by deforming either of the inner plates and the outer plates in response to the rotation speed of the shaft or the case body.