Optical/Electrical Mixed Mounting Substrate
AssigneeHitachi Chemical Company, Ltd.
InventorsTomoaki Shibata, Masato Miyatake, Atsushi Takahashi, Masatoshi Yamaguchi
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Abstract
The present invention provides a hybrid optical/electrical circuit board in which an optical waveguide prepared by an exposing and developing step is combined with an electric circuit, wherein a printed wiring board containing an inorganic filler and a light absorber is used, and it has an optical waveguide core pattern having a high resolution and makes it possible to raise a density of optical wiring.
Claims8
A hybrid optical/electrical circuit board in which an optical waveguide prepared by an exposing and developing step is combined with an electric circuit, wherein a printed wiring board containing an inorganic filler and a light absorber is used.
The hybrid optical/electrical circuit board according to 2, wherein a surface of the printed wiring board has a reflectance of 0.2% or less in a wavelength of an exposing light used for forming the optical waveguide.
Dependencies are inferred from the claim text.