Method for practically loading transmission or receiving module for optical link and its rigid flexible board

Abstract

A method for practically loading a small-sized and compact transmission or receiving module for an optical link in which interference between a receiving circuit and a transmission circuit can be prevented, high speed and high quality communications with a high S/N ratio can be carried out, and generated heat at the IC or the like can be discharged efficiently to a surrounding atmosphere, wherein at least a pair optical fibers 2 are installed at a fiber installing part 4, each light emitting element 5 and light receiving element 6 is arranged in a direction of an optical axis each of transmission optical fiber and receiving optical fiber installed at the fiber installing part, a first board 10 connected to root portions of the lead terminals of the light emitting element and the light receiving element is integrally formed with a second board 12 and a third board 14 respectively connected to both opposing ends of the first board through a flexible board, and the second board and the third board are folded at a substantial right angle to the first board in such a way that the second board and the third board face away from each other.

Dependencies are inferred from the claim text.