Back to results
US 2006/0133762 A1Published application
Polymer optical waveguide and method of making the same
AssigneeHitachi Cable, Ltd.
InventorsHiroki Yasuda, Kouki Hirano, Tomiya Abe, Yuzo Ito
Life of this patent
Estimating the term…
Abstract
A polymer optical waveguide has a substrate, a buffer layer formed on the substrate, and a polymer waveguide main body formed on the buffer layer. The buffer layer is made of a polymer material that can absorb a difference in thermal expansion coefficient between the substrate and the polymer optical waveguide.
Claims12
A polymer optical waveguide, comprising:
- a substrate;
- a buffer layer formed on the substrate;
- and
- a polymer waveguide main body formed on the buffer layer,
- wherein the buffer layer comprises a polymer material that can absorb a difference in thermal expansion coefficient between the substrate and the polymer optical waveguide.
2 more elements
A method of making a polymer optical waveguide, comprising:
- a first step of providing a substrate;
- a second step of forming a buffer layer on the substrate;
- and
- a third step of forming a polymer waveguide main body on the buffer layer,
- wherein the buffer layer formed in the second step comprises a polymer material that can absorb a difference in thermal expansion coefficient between the substrate and the polymer optical waveguide.
2 more elements
A polymer optical waveguide, comprising:
- a substrate;
- a buffer layer formed on the substrate;
- and
- a polymer waveguide main body formed on the buffer layer,
- wherein the buffer layer comprises a polymer material that has a glass transition temperature in the working temperature range of the polymer optical waveguide.
2 more elements
Dependencies are inferred from the claim text.