In one embodiment, an eyeglass frame includes a lens holder, a first temple with a first end close to the lens holder and a second end, a second temple, an electrical connector and a printed circuit board. The epitaxial layer may have the first conductivity type and also a conductivity less than a conductivity of the substrate. Each of the centers uses information contained in the databases of the data-managing center, performs two-way communication with the client, and thereby progresses the production of the semiconductor integrated circuit. The fixed and movable metal terminals are formed with insertion plates which can be inserted and located in the insertion sockets.