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Optical waveguide manufacturing method and optical waveguide

A manufacturing method and optical waveguide technology, which is applied in the field of optical waveguides, can solve problems such as large influence of bubbles, residual bubbles, and increased loss

Inactive Publication Date: 2016-03-30
RESONAC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is a problem that air bubbles entered when the core portion is buried remain between the core layer and the upper cladding layer, and there is a problem that the loss increases when an optical signal passes due to the air bubbles.
In particular, the conventionally required wiring density of the core part is about 50 μm / 200 μm in line width / space. greater impact

Method used

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  • Optical waveguide manufacturing method and optical waveguide
  • Optical waveguide manufacturing method and optical waveguide
  • Optical waveguide manufacturing method and optical waveguide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0129] Example 1 (first manufacturing method)

[0130] 〔Production of resin film for clad formation〕

[0131]In a wide-mouthed polyethylene bottle, weigh phenoxy resin (trade name: フエノト-トYP-70, manufactured by Tohto Chemical Co., Ltd., number average molecular weight) as (A) base polymer (binder polymer). 43000) 48 parts by mass, 49.6 parts by mass of alicyclic diepoxycarboxylate (trade name: KRM-2110, molecular weight: 252, manufactured by Asahi Denka Kogyo Co., Ltd.) as (B) photopolymerizable compound, as (C ) 2 parts by mass of triphenylsulfonium hexafluoroantimonate (trade name: SP-170, manufactured by Asahi Denka Co., Ltd.) as a photopolymerization initiator, and SP-100 (trade name: Co., Ltd.) 0.4 parts by mass, 40 parts by mass of propylene glycol monomethyl ether acetate as an organic solvent, using a mechanical stirrer, a rotating shaft and a propeller, stirring for 6 hours at a temperature of 25° C. and a rotation speed of 400 rpm, and adjusting Resin varnish A for ...

Embodiment 2

[0147] Embodiment 2 (first manufacturing method)

[0148] 〔Production of resin film for clad formation〕

[0149] In a wide-mouthed polyethylene bottle, weigh 50 parts by mass of phenoxy resin (trade name: フエノト-トYP-70, manufactured by Tohto Kasei Co., Ltd.) as (A) base polymer (binder polymer). 50 parts by mass of alicyclic diepoxycarboxylate (trade name: KRM-2110, molecular weight: 252, manufactured by Asahi Denka Co., Ltd.) as (B) photopolymerizable compound, as (C) photopolymerization initiator 2 parts by mass of triphenylsulfonium hexafluoroantimonate (trade name: SP-170, manufactured by Asahi Denka Kogyo Co., Ltd.), 40 parts by mass of propylene glycol monomethyl ether acetate as an organic solvent, using a mechanical stirrer, The rotating shaft and the propeller were stirred for 6 hours at a temperature of 25° C. and a rotation speed of 400 rpm to prepare a resin varnish C for clad formation. Thereafter, pressure filtration was performed at a temperature of 25°C and a p...

Embodiment 3

[0165] Embodiment 3 (second manufacturing method)

[0166] 〔Production of resin film for clad formation〕

[0167] In a wide-mouthed polyethylene bottle, weigh 48 parts by mass of phenoxy resin (trade name: フエノト-トYP-70, manufactured by Tohto Kasei Co., Ltd.) as (A) base polymer (binder polymer). 49.6 parts by mass of alicyclic diepoxycarboxylate (trade name: KRM-2110, molecular weight: 252, manufactured by Asahi Denka Co., Ltd.) as (B) photopolymerizable compound, as (C) photopolymerization initiator 2 parts by mass of triphenylsulfonium hexafluoroantimonate (trade name: SP-170, manufactured by Asahi Denka Industries, Ltd.), 0.4 parts by mass of SP-100 (trade name, manufactured by Asahi Denka Industries, Ltd.) as a sensitizer Parts, 40 parts by mass of propylene glycol monomethyl ether acetate as an organic solvent, using a mechanical stirrer, a rotating shaft and a propeller, under the conditions of a temperature of 25 ° C and a rotation speed of 400 rpm, stirred for 6 hours,...

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Abstract

An optical waveguide manufacturing method has a step of forming a lower clad layer by hardening a clad layer forming resin formed on a base material; a step of forming a core layer by laminating, on the lower clad layer, a resin film for forming the core layer; a step of forming a core pattern by exposing and developing the core layer; and a step of forming an upper clad layer by laminating, on the core pattern, a resin film for forming an upper clad layer, and hardening the clad layer forming resin.  At the time of laminating the resin film for forming the upper clad layer, laminating conditions are controlled so that the melt viscosity of the clad layer forming resin is 100-200Pa·s.  The optical waveguide is formed of a resin having a melt viscosity of 100-200Pa·s.  In the optical waveguide manufacturing method, the optical waveguide can be manufactured with high productivity, and no bubble is left between the core layer and the upper clad layer.

Description

technical field [0001] The present invention relates to a method of manufacturing an optical waveguide and an optical waveguide, and more particularly to a method of manufacturing an optical waveguide and an optical waveguide capable of manufacturing an optical waveguide with good productivity without remaining air bubbles between a core layer and an upper cladding layer. Background technique [0002] With the increase of information capacity, not only in the field of communication such as trunk lines and access systems, but also in information processing in routers and servers, optical interconnection technology using optical signals is being developed. Specifically, in order to use light for inter-board or intra-board short-distance signal transmission in routers or server devices, opto-electrical hybrid boards in which optical transmission paths are combined in electrical wiring boards are being developed. As the optical transmission path, it is preferable to use an optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/13
CPCG02B6/1221
Inventor 柴田智章山口正利高桥敦之落合雅美
Owner RESONAC CORPORATION