Technologies for high-vacuum thin-film coating applications

Deposition of layers to improve a material

Bühler Leybold Optics is one of the leading system manufacturers of high-vacuum thin-film deposition technology, whereby thin-film coating functionality is added to a substrate. This can be a moisture barrier in the case of a packaging foil, a reflective layer for a car light reflector, an anti-reflection layer, a complex filter stack for optical components, highly reflective enhanced and protected layers for astronomical mirrors, or a heat insulation layer stack for architectural glazing applications. Thin films have thicknesses ranging from nanometers to micrometers and they can be a single layer or layer stacks of several hundred layers, as can be the case with optical filters. Physical vapor deposition (PVD) with thermal or electron-beam evaporation as well as sputtering uses a rigid deposition material source. However, where our systems use chemical vapor deposition (CVD), gases or liquid material sources are used.

We offer the complete spectrum of vacuum thin-film deposition technologies, from evaporation, sputtering, plasma-enhanced chemical vapor deposition (PECVD) and enhancements of the technologies such as plasma-assisted reactive magnetron sputtering (PARMS). For mass production systems several in-situ process control systems are available. Our systems can coat tiny substrates of a few millimeters to extremely large glass panes of more the 20 m² for use in architecture. The substrates can be rigid or flexible as in food packaging or electronic capacitor manufacturing.

About Bühler Leybold Optics

In the beginning of 2012, Leybold Optics GmbH became a subsidiary of the Bühler Group based in Switzerland: Business Unit Leybold Optics, legally rebranded to Bühler Alzenau GmbH in 2015, operates under the Advanced Material Division within the Bühler Group.