| 摘要 |
PURPOSE:To eliminate the penetration of humidity, contaminated ions, etc. through a support, and the adhesion of noble metallic plating to mounting part and supporting part by a method wherein the mounting part is supported by combining with external loading leads by an insulator. CONSTITUTION:An insulator 6 that is adhered to a plastic envelope consists of a resin sheet or film leaf whose coefficient of thermal expansion and hygroscopic swelling are close to those of the envelope, and is adhered to mounting part 1 and external loading leads 4a-4n, as well as covering them. As a result, a microgap does not exist between plastics, the envelope, that grows along a support part, and metal comprising the support part, thus this extremely lessens the penetration of a harmful object. In addition, the mounting part is isolated electrically from the part with electric potential by plating, therefore the adhesion of noble metallic plating to the mounting part can be easily avoided. |
