Valsigna GmbH
Where Precision Lives


We offer R&D, prototyping and batch micro fabrication services in glass, polymers, metals, ceramics and other materials.

Selective Etching

Glass and sapphire 3D structures. Laser beam affected areas are chemically etched to obtain clean, crisp structures.

  • Arbitrary 3D shape with possibilities of large structures (up to centimeters)

  • Relatively high surface quality (1 µm RMS)

  • Feature size from 5 mm up to 100 nanometers

  • Non-assembled moving constructions and micro devices

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  • Low thermal effect during fabrication (cold processing)

  • High resolution and high quality lines and cuts with no post-processing with surface roughness up to 2 microns

  • Applicable to most materials

  • Fast and clear cutting, drilling, ablation, marking

  • Eliminate cost and time of post-processing


Ablation: Surface Modification

Femto-second laser based surface modification of metals, glass and other materials permanently changes surface wetting properties:

  • optical (structural colouring)

  • hydrophobic

  • antibacterial

  • anti-corrosive

  • self-cleaning 

Hierarchical nanogrooves on micro-features replicate a lotus leaf. 

While single or split laser beam surface modification was successful in laboratory, speed was not satisfactory for larger surfaces.

Surface modification technology has potential to reduce costs and enhance product features in the following industries:

  • Marine, oil&gas (anti-fouling) - savings on anti-fouling mean reapplication, fouling removal and fuel costs 

  • Aviation, energy transmission (anti-icing) 

  • Space (self-cleaning, antibacterial, self-lubricating, optical coating alternative)

  • Medical devices and implants (antibacterial)

If you are interested to explore this technology for your products we invite you to get in touch with us.

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