Product model
Type of product
SILAYO - PEALD for optical coatings

SILAYO extends SENTECH ALD and PEALD product portfolio to deposition on 330 mm substrates and 3D substrates, 100 mm high.  In order to ensure an excellent uniformity and conformality in layer-thickness, plasma enhanced atomic layer deposition is used for depositing optical thin films applied as e.g. anti-reflective coatings or optical filter systems. SILAYO uses the advantages of the Planar Triple Spiral Antenna (PTSA) ICP source in PEALD processing. The system is controlled by advanced SENTECH control software using remote field bus technology, and a user-friendly interface. It can optionally be equipped with proprietary Real Time Monitor for in situ monitoring. SILAYO is designed for conformal and homogeneous optical coatings on large 3D objects and on batches of small substrates. The SENTECH proprietary Planar Triple Spiral Antenna (PTSA) provides a homogeneous plasma for homogeneous optical coatings.SILAYO is a Plasma Enhanced Atomic Layer Deposition System for optical coatings and extends SENTECH PECVD and ALD product portfolio. Optical coatings require a high level of accuracy and repeatability regarding layer properties such as thickness, composition, conformality and stress control.


Technical features
  • EALD for best thin film uniformity < 1 %
  • Samples up to 330 mm diameter & 100 mm height
  • Stress and refractive index control using RF bias

SILAYO is designed for depositing materials on large and 3D-shaped substrates, especially for optical coatings with high requirements on layer performance such as:

  • High precision in thickness and composition control
  • Smooth surfaces and sharp interfaces
  • Stress control, especially for high thickness multilayer stacks
  • High uniformity and conformality on 3D shapes
  • Reduced deposition temperatures for low damage processing
  • Company brochure of the systems here.


Product Links
Sentech SILAYO manufacturer page
linkedin invite