| 摘要 |
PURPOSE:To obtain a structure which serves as both a conductor circuit and a case by a method wherein a conductor circuit module and a transmission medium are insert-molded in an electronic electric equipment, where the conductor circuit module is formed in such a manner that an electrical.optical medium is monolithically formed in synthetic resin. CONSTITUTION:A structure of this design is formed in such a manner that an optical, an electric signal, and a power energy transmission medium are insert-molded in synthetic resin, where optical fibers are used for optical signals as the transmission medium, electric wires or a metal thin plate lead frame is used for electrical signals, and an electric power line or a metal conductor circuit of two-dimensional or three- dimensional structure elliptic in cross section is used for power energy. The molding of the structure is carried out in such a way that a three-dimensional transmission medium is installed inside a mold, the transmission medium is partially or all fixed by molding or insulated by coating through a transfer molding of low pressure, and then a cavity is expanded and resin excellent in heat resistance is injection-molded, whereby a conductor circuit module 6 and a case 7 are formed into a integral structure. Usually, epoxy resin containing quartz powder is used for a transfer molding, and polyphenilene sulfide or the like whose thermal deformation temperature is 200 deg.C or above is used for an injection molding. |
