Products & Services
Selba offers a comprehensive range of precision products tailored to each client’s needs. Our expertise spans optical components, photomasks and custom glass machining.
Industrial expertise
Precision Manufacturing Solutions
Swiss Precision Manufacturing
SINCE 1948
4'650
ACTIVE
REFERENCES
+250'000
GLASS-BASED PRODUCTS MACHINED / YEAR
+35'000
FILM-BASED PRODUCTS
PRINTED / YEAR
PRINTED / YEAR
21
COUNTRIES WHERE
OUR CLIENTS ARE
Our Specialized Solutions
Industrial Product Categories
GLASS PHOTOMASKS
Glass photomasks are high-resolution chromium-on-glass master tools defining precise patterns in photolithography, directly determining accuracy and quality across semiconductor, electronics, medical, and optical fabrication processes.
Technical aspects
- Minimum Feature / Line Width down to 0.6 μm
- Sodalime, Quartz (fused silica)- Other substrate on request
- Standard coating: low reflective chrome @435 nm. Over coating options available
OPTICAL ENCODER DISCS
Our optical encoder discs deliver high-resolution, application-specific graduation patterns on glass and film, ensuring precise motion feedback and reliable performance in demanding systems.
Technical aspects
- Minimum Feature / Line Width: 5μm standard. Down to 2 μm on request
- Outer Ø: up to 200 mm as standard, up to 290mm on request
- Glass Type: Sodalime, Quartz, D263, Black glass. Other substrates on request
- Thickness: from 0.3 to 6 mm
OPTICAL LINEAR SCALES
Optical linear scales are the foundational measurement components in any system where linear position must be determined directly, accurately, and repeatably — from CNC machining centres and semiconductor lithography stages to coordinate measuring machines and photonic test equipment.
Technical aspects
- Minimum Feature / Line Width: 5μm standard. Down to 2 μm on request
- Substrates: Glass (Sodalime, Quartz, D263, Black glass) and Aluminium. Other substrates on request
- Linear Length: up to 900 mm as standard
- Thickness: from 0.3 to 4.8 mm
FILM PHOTOMASKS
Film photomasks are flexible, cost-effective alternatives to glass, delivering precise patterning with fast turnaround and cost efficiency for industrial lithography, prototyping, and mid-volume production.
Technical aspects
- Minimum Feature: 7 μm for line, 12μm for circle.
- Dimensions: up to 28×32 inches. Larger formats on request
- 24h shipping
CALIBRATION PLATES & TARGETS
Precision graduation patterns and calibration plates are custom photolithographic glass reference artifacts ensuring geometric accuracy, dimensional stability, and traceable calibration for optical, metrology, and machine vision systems.
Technical aspects
- Substrate Material: Glass Sodalime, Quartz, D263, optical filter — other substrates on request
- Coating on Substrate: Reflective chromium (R > 60%) or antireflective chromium (R < 5% at a specific wavelength)
- Minimum Feature / Line Width: 0.6 μm
- Dimensions: according to customer specifications
FINE GLASS MACHINING
We handle 2D fine-glass machining work, down to 0.1mm thickness, using our in-house designed equipment. Our highly versatile tooling allow us to process every type of request, from wafer cutting and dicing to calibration plate chamfering.
Technical aspects
- Precision Glass Machining: down to 0.1 mm
- Tight Geometric Indexing Complex
- Profile Capability: > 200+ mm