Vacuum Metrology in Thin Film Coating

Thin film coatings are indispensable today in numerous industries—from optics and electronics to sensor technology and renewable energy. Precise vacuum measurement technology forms the basis for reproducible processes and high coating quality.

Application Areas of Thin Film Coating

In thin film coating, functional material layers in the nano- to micrometer range are selectively deposited onto substrates. Depending on process requirements, optical, electrical, or mechanical properties are deliberately modified. Typical fields of application include:

• Optical coatings: Anti-reflective, mirror, and filter coatings for eyeglasses, sensors, imaging systems, and laser optics
• Electronics & photovoltaics: Conductive and semiconducting layers for semiconductor manufacturing, solar modules, and sensor technology
• Protective and functional coatings: Hard coatings and barrier layers, corrosion protection, or hydrophobic surfaces

For all applications layer thickness and material properties depend directly on stable pressure conditions during the process.

The Role of Vacuum Measurement Technology

Creating the required vacuum environment, as well as controlling and regulating pressures, is essential for reproducible process operation. Only when pressure remains within a defined range can high end-product quality be ensured. Suitable vacuum measurement technology provides precise process control by regulating pressure in both the fore-vacuum chamber and the high-vacuum chamber.