When a fixed-cycle transmission timing arrives, a fixed-period communication processing section transmits data in a shared memory to a BCM. The package includes a semiconductor die with bond pads, a die attachment pad on which the semiconductor die is attached, and a substrate on which the die attachment pad is positioned. In this example, the first refocusing pulse has phase \u03c6B, where \\\u03c6B\u2212\u03c6A\\=90\xb0, and each successive refocusing pulse has a phase \u03c6\u03b4 greater than the last refocusing pulse. The cutting of the deposited material occurs when the base plate is held in a cylindrical form so as to permit mounting on the cylinder without substantial deformation, from an as-cut state, of the base plate or the deposited material.