A method of forming a semiconductor device is provided. The workpiece is secured in a hoop that is interchangeably mountable to a screen printing machine and an automated embroidery machine. The murmur frame is subdivided into sub-areas each dedicated to a specific aspect of the meeting. As a result, when a disk or optical recording medium has a thickness error, the focus error signal derived from the main beam and focus error signals derived from the sub-beams differ in zero-crossing point from each other. , followed by four 1s, four 2s, four 3s, etc. The digital telephone can thus navigate between different servers on the packet switched network for activation of different digital telephone services, and for downloading new software or updating existing software related to the digital telephone services.