| 摘要 |
PURPOSE:To increase mechanical strength by enabling a casing, including a metal cover, and a substrate to be electrically connectable surely, eliminating handling a small spring part, facilitating assembling, and supporting the metallic cover. CONSTITUTION:Plate springs 14 and 15, having electrical potential the same as that of a metallic cover 12, are point-welded to the metal cover 12 (P). Land 13a on a substrate 13 and the metallic cover 12 are electrically connected to the substrate 13 retained by the plate springs 14 and 15. |
