| 摘要 |
PURPOSE:To realize a compact optical transmitting module of good producibility by providing an electric circuit for controlling a photosensitive or light emitting element and the array-like element on the same wiring board, by projecting a wiring board outside a package and by supporting an electrode terminal outside a module package. CONSTITUTION:An electric circuit 12 (A light emitting element is a driving IC and a photosensitive element is an amplifying IC.) for controlling an array- like light emitting element or photodetector 11 is fixed by soldering, etc., to an about 1mm-thick Cu, CuW, or ceramic wiring board 14 and connected to an electrode pattern 13 by wire bonding, etc. The array-like element 11 is fixed to the wiring board 14 by soldering, etc., and connected to the electric circuit 12 for controlling by connecting with an electrode pattern 13 on the wiring board 14. An electrode pattern 13 is provided by vacuum deposition of about 1000Angstrom using Cr as a foundation layer and manufactured by patterning by photolithography after Ni of about 2mum is plated thereon. |
