| 摘要 |
PURPOSE:To shorten the time required for transmitting an information signal, or to reduce time delay by setting up an optical waveguide as an information signal transmitting path between unit circuits for an integrated circuit. CONSTITUTION:Regarding a transmission section E1, electric light converting light-emitting elements 4, such as a light-emitting diode, a semiconductor laser, etc. are set up on a substrate 1, and the active region or light-emitting section 6 for the elements is arranged so as to emit beams I into the optical waveguide 3. An electrode region 5 for driving the light-emitting elements 4 is formed in the surface of the substrate. On the other hand, light-receiving elements 10 as a reception section D1 are constituted so that a P-N junction is formed between a first region 7 formed to a section such as the surface section of the substrate and a second region 1a as a substrate 1 section around the first region, and a potential change generated in the first region 7 can be detected as an information signal when the first region 7 is connected to the predetermined electric signal input terminal of the unit circuit with the reception section. The optical waveguide 3 is constituted to a shape that it is bent down toward the substrate side in order to introduce beams toward the reception section. |
