Fabrication and replication of polymer optical waveguides

Patent metadata

Field	Value
Publication number	US-9981408-B2
Application number	US-201414222837-A
Country	US
Kind code	B2
Filing date	Mar 24, 2014
Priority date	Mar 12, 2014
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

Polymer optical waveguides can be produced by separating the processes into a distinct embossing process and a distinct UV exposure process. Separating the processes can create a more refined product and a more efficient process, thus eliminating the need for special polymer optical waveguide fabrication machinery.

First claim

What is claimed is:

1. A product, comprising:
a first polymer deposited on a first substrate wherein the first polymer has been solidified prior to being engraved with one or more waveguide circuit pattern channels, wherein the first polymer is created by applying pressure to the first polymer via a mold, and wherein the first polymer comprises a first EpoClad from Microresist GmBh;
a second polymer deposited on a second substrate; and
a third polymer situated in the one or more waveguide circuit pattern channels, wherein the third polymer comprises a second EpoClad from Microresist GmBh, and wherein the second polymer is in direct contact with the third polymer.

2. The product of claim 1 ,
wherein the third polymer is an optically transparent core polymer.

3. The product of claim 2 ,
wherein the optically transparent core polymer is between the first polymer and the second polymer, and wherein the optically transparent core polymer is solidified before lamination.

4. The product of claim 1 , wherein the first substrate comprises a silicon wafer.

5. The product of claim 4 , wherein the mold is a first mold, and the second polymer is formed by a second mold.

6. The product of claim 1 , wherein the first substrate or the second substrate comprises a copper-coated FR4 board.

7. The product of claim 1 , wherein the second polymer comprises EpoCore from Microresist GmBh.

8. The product of claim 1 , wherein at least one of the first polymer or the second polymer comprises an ultraviolet curable polymer.

9. The product of claim 2 , wherein the optically transparent core polymer comprises EpoCore from Microresist GmBh.

10. The product of claim 2 , wherein the first polymer and the second polymer comprise a refractive index lower than another refractive index of the optically transparent core polymer.

11. The product of claim 1 , wherein the second polymer comprises an ultraviolet curable material.

12. The product of claim 1 , wherein the second polymer comprises a third EpoClad from Microresist GmBh.

13. The product of claim 1 , wherein the first polymer and the second polymer are laminated.

14. A device, comprising:
a first polymer that is optically radiated deposited on a first substrate that comprises a first copper-coated FR4 board, wherein the first polymer has been solidified prior to being engraved with one or more waveguide circuit pattern channels, wherein the first polymer is created by applying pressure to the first polymer via a mold and concurrently increasing a temperature of the first polymer;
a second polymer deposited on a second substrate wherein the second substrate comprises an EpoCore from Microresist GmBh; and
a third polymer situated in the one or more waveguide circuit pattern channels, wherein the third polymer comprises a second copper-coated FR4 board, and wherein the second polymer is in contact with the third polymer.

15. The device of claim 14 , wherein the first polymer undergoes a blowing process to dry the polymer for solidification.

16. The device of claim 14 , wherein the third polymer is an optically transparent core polymer.

17. The device of claim 16 , wherein the first polymer comprises a first refractive index lower than a second refractive index of the optically transparent core polymer.

18. The device of claim 16 , wherein the second polymer comprises a first refractive index lower than a second refractive index of the optically transparent core polymer.

19. A product, comprising:
a first polymer deposited on a first substrate that comprises a first bare FR4 board, wherein the first polymer has been solidified prior to being engraved with one or more waveguide circuit pattern channels, wherein the first polymer is created by applying pressure to the first polymer via a mold;
a second polymer deposited on a second substrate, wherein the second polymer comprises EpoClad from Microresist GmBh, and wherein the second substrate comprises a second bare FR4 board; and
a third polymer situated in the one or more waveguide circuit pattern channels, wherein the third polymer is an optically transparent core polymer, wherein the third polymer comprises EpoCore from Microresist GmBh, and wherein the second polymer is in contact with the third polymer.

20. The product of claim 19 , wherein at least one of the first polymer or the second polymer comprises an ultraviolet curable polymer.

Assignees

• Univ City Hong Kong

Inventors

• Jin Wei
• Chiang Kin Seng
• Chan Hau Ping Andy

Classifications

• B29C33/424 Primary

  Moulding surfaces provided with means for marking or patterning (for injection moulding B29C45/372) · CPC title

• B29K2083/00

  Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material · CPC title

• G02B6/00

  Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings · CPC title

• B29C2059/023

  Microembossing · CPC title

• B29L2031/757

  Moulds, cores, dies · CPC title