Method for producing an electro-optical printed circuit board with optical waveguide structures
US8383327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2010 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09918
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electro-optical printed circuit board contains electrical conductor tracks on the one hand and optical waveguide structures on the other hand. The optical waveguide structures comprise a bottom layer, a core layer and a cladding layer. Visible areas are applied to the printed circuit board, and the core layer is applied later both to the bottom layer as well as the visible areas and structured both on the bottom layer as well as the visible areas. This structure is then transferred to the visible areas, e.g. by etching. Reference marks are thus produced which contain the information on the actual position of the optical waveguide structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.