Patent ID: 8175424
Filing Date: 2012-05-08
Classification: G02B,H05K,Y10T

Abstract:
1. A method of manufacturing an electrical and optical hybrid board which includes an electrical wiring board having a transparent substrate made of resin and an optical waveguide including one clad layer, a core layer and an other clad layer laminated on the substrate of the electrical wiring board, the method comprising: (A) preparing a laminate of one clad layer, the core layer and the other clad layer on one surface of the substrate and preparing a conductive layer on an other surface of the substrate that is opposite to the one surface; (B) patterning an alignment mark and an electrical interconnect pattern or electrical joint from the conductive layer at the same time on the other surface of the substrate, so as to form the electrical wiring board, the alignment mark being used for forming a core pattern of optical waveguide, and the electrical joint being used for connection with an external device; and (C) forming a core pattern of optical waveguide on the basis of the alignment mark without using a photomask.