One embodiment of the present invention provides a switch. The present invention is a process for producing a ceramics fired body comprising a step of firing a shaped body, wherein a linear shrinkage ratio in dimension of the fired body to the shaped body =\xd7100) is not lower than 1% and the shaped body is fired while being disposed on a mat made of a ceramics having a high thermal conductivity. The BS divides the channel descriptor into a common channel descriptor and at least one particular channel descriptor. A plurality of cable arms are removably connected to the supports and are adapted to support the cables disposed through only a single opening in the first support associated with a specific piece of equipment. A connector for connecting the semi-cylindrical shells to the wheel is also disclosed. Control elements are operably connected to apply voltages to predetermined combinations of wires to form permanent voids at data points throughout the solid state memory device.