Panasonic Electric Works Co., Ltd.

Matsushita Electric Works, Ltd.

Tooru Nakashiba

Shinji Hashimoto

Hiroyuki Yagyu

Yuuki Kasai

Hideo Nakanishi

Tomoaki Matsushima

Tomoaki Nemoto

Yukio Matsushita

Kouhei Kotera

A material for an optical circuit-electrical circuit mixedly mounting substrate comprises a light permeable resin layer, and an optical circuit forming layer that is made of a light permeable resin of which refractive index increases (or decreases) when irradiated with an activating energy beam and is disposed adjacent to the light permeable resin layer, wherein a refractive index of a portion of the optical circuit forming layer is higher (or lower) than that of the light permeable resin layer when the material for the optical circuit-electrical circuit mixedly mounting substrate is irradiated with an activating energy beam so that said portion is irradiated.

Material for substrate mounting optical circuit-electrical circuit mixedly and substrate mounting optical circuit-electrical circuit mixedly

In a method for forming a photoelectric composite board () on which a photoelectric transducer () is mounted, photo-masks () which are used in processes to form the photoelectric composite board () are respectively disposed on the basis of a reference mark () previously formed on a metal thin film (). In addition, openings () are formed on solder resist layers () by irradiating laser beams at positions defined on the basis of a reference point () defined above a light deflector () formed on an end of a light guide ().

Method for forming photoelectric composite board

A process of forming a deflection mirror in a light waveguide with a use of a dicing blade having a cutting end with a flat top cutting face and at least one slanted side cutting face. The process includes a cutting step of cutting a surface of the light waveguide to a depth not greater than a width of the flat top cutting face, thereby forming a groove in the surface of the light waveguide. The groove has a slanted surface which is formed by the slanted cutting face to define the deflection mirror in the waveguide.

Process of forming a deflection mirror in a light waveguide

A material for an optical circuit-electrical circuit mixedly mounting substrate comprises a light permeable resin layer, and an optical circuit forming layer that is made of a light permeable resin of which refractive index increases (or decreases) when irradiated with an activating energy beam and is disposed adjacent to the light permeable resin layer,

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Osaka, Japan

Tooru Nakashiba