| 摘要 |
The shim (1) has a sheet (3) adhered to a plane face (7). Another sheet (5) is made of polyethylene terephthalate and aluminum and adhered to a plane face (9), where the latter plane face is arranged opposite to the former plane face. The latter sheet comprises physical characteristics uniformly different from that of the former sheet that is made of electrically insulating polyethylene terephthalate. The latter sheet is covered with a metal film on a contact surface (11). The physical characteristics relates to current transmission coefficient and light transmission coefficient. |
