| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized and compact transmitting and receiving module mounting method for optical link where interference of a receiving circuit part and a transmitting circuit part is prevented, high quality communication of high speed and high S/N ratio is enabled, heat generation of an IC or the like can be effectively dissipated to the external part. SOLUTION: At least a pair of optical fibers 2 are installed in a fiber installation part 4. A light emitting element 5 and a photodetector 6 are arranged in the optical axis directions of the optical fibers for transmitting and receiving which are installed in the fiber installation part. A first board 10 bonded to root parts of leads of the light emitting element and the photodetector 6, and a second and a third boards 12, 14 which are bonded to both facing side ends of the first board 10 via a flexible board are collectively formed in a unified body. Thus a transmitting and receiving module mounting method for optical link where the second and the third boards are so bent at an almost right angle to the first board that the second board and the third board are made to face each other is obtained. |
