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Evaporation Coating

High-Performance Vacuum Coating Systems

Principle:
Under vacuum conditions, source materials are vaporized through heating methods such as resistance heating, electron beam bombardment, or laser heating. The vaporized atoms or molecules travel linearly to the substrate surface and condense into a thin film.



Characteristics:

  • Advantages: Relatively simple equipment and process, fast deposition rate, and high film purity. 
  • Disadvantages: Weaker coating adhesion, poor step coverage, unsuitable for complex-shaped workpieces, and prone to alloy composition segregation. 


Applications:

  • Optical Coatings: Production of high-performance optical films such as filters and anti-reflective coatings. 
  • Packaging & Decoration: Aluminum or metal coating on food packaging paper and plastic products for barrier protection and decorative effects. 
  • Electronics Industry: Fabrication of OLED panels, electrodes, and related components. 
  • Advanced Development: Electron beam evaporation technology is highly mature, offering high energy density suitable for evaporating high-melting-point materials. Current trends focus on multifunctional, fully automated systems integrating multiple deposition technologies.
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