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Light Absorbing Patternable Coatings on Wafers
Light absorbing coatings on wafers of almost any material have excellent coverage of the entire surface including edges. Typical coating thickness is from 0.8 to 2 microns with working temperatures from -269 to +350 degrees C.
Key features of black optical coatings include:
- Very low reflectivity coatings
- Tailorable electrical resistivity – conductor or insulator
- Etching or lift-off technology
- 3 micron feature size
- Virtually any substrate material – silicon, glass, ceramic, etc.
- No particulation
- Compatibility with lithographic process chemicals
- Vacuum, cryogenic and clean room compatible
For a listing of all optical black coating types, click here.