| 摘要 |
PROBLEM TO BE SOLVED: To provide a mounting substrate having a structure which is easily manufactured, in the mounting substrate for mixedly mounting both optical devices and electronic devices. SOLUTION: Electric wiring 2 is formed on the surface of the side on which the optical devices A and the electronic devices B are mounted and also optical waveguides 3 are formed on the surface of the opposite side, total reflection mirror parts 4 are formed at the end parts of the optical waveguides 3 so that optical signals are orthogonally bent from the optical waveguides 3 toward light receiving and emitting parts a of the optical devices A, and a material which the optical signals transmit is used in the material for the substrate 1. Such a state that as if an optical waveguide part 5 ware formed between the total reflection mirror part 4 of the optical waveguide 3 and the light receiving and emitting part (a) of the optical device A is obtained. Even if the optical waveguide in which a 45 deg. total reflection mirror is formed is not reversed like a conventional technique, the optical signal within the optical waveguide is efficiently transmitted to the optical device and also the optical signal from the optical device is received by the optical waveguide with a simple structure. |
