Properties
- By using plasma etching minimal pattern sizes of down to 2µm can be achieved.
- These structures can be filled with white color and illuminated with LED to achieve an luminous pattern.
- The same contrast values can be achieved as with much bigger HF etched structures. (contrast ratio > 0.6)
- Product fact sheet plasma etched illuminated structures
Plasma etching
![plasma_etching_001 Masking the structure](https://www.pog.eu/wp-content/uploads/2021/03/plasma_etching_001-300x72.png)
![plasma_etching_002 Etching of the glass substrate](https://www.pog.eu/wp-content/uploads/2021/03/plasma_etching_002-300x72.png)
![plasma_etching_003 Removal of the mask and filling of the structures with special white paint](https://www.pog.eu/wp-content/uploads/2021/03/plasma_etching_003-300x72.png)
HF etching
![wet_etching_001 Masking the structure](https://www.pog.eu/wp-content/uploads/2021/03/wet_etching_001-300x72.png)
![wet_etching_002 Etching of the glass substrate](https://www.pog.eu/wp-content/uploads/2021/03/wet_etching_002-300x72.png)
![wet_etching_003 Removal of the mask and filling of the structures with special white paint](https://www.pog.eu/wp-content/uploads/2021/03/wet_etching_003-300x72.png)
![Horus_Dummy_003_AL_1000x](https://www.pog.eu/wp-content/uploads/2021/04/Horus_Dummy_003_AL_1000x-300x182.jpg)
![Leu_005_500X](https://www.pog.eu/wp-content/uploads/2021/04/Leu_005_500X-300x182.jpg)