Quick answer: Laser Cutting ITO Coated Glass covers ITO Coated Glass (CTE substrate dependent, >85% visible @ 100 ohm/sq); Laser Cutting to +/-0.02 mm contour. Prototypes ship in 5-10 working days.
Ask any process engineer what makes ito coated glass difficult and the answer is specific: machining happens film-side-aware: scribing, edge deletion and contact zones are defined before cutting. Our laser cutting line is tooled around exactly that – picosecond and CO2 laser stations with vision registration – holding +/-0.02 mm contour on parts from 0.03 – 6 mm thick.
Specification envelope
| Material | ITO Coated Glass (ITO on soda-lime, borosilicate or alkali-free) |
|---|---|
| Thermal expansion (CTE) | substrate dependent |
| Service temperature | 350 C (coating stable) |
| Transmission range | >85% visible @ 100 ohm/sq |
| Density | 2.23 – 2.51 g/cm3 |
| Knoop hardness | substrate value |
| Refractive index | 1.9 – 2.1 (ITO film) |
| Stock thickness | 0.30 – 3.0 mm substrates |
| Maximum blank size | 400 x 300 mm |
| Process | Laser Cutting |
| Working tolerance | +/-0.02 mm contour |
| Minimum feature | 0.10 mm hole diameter |
| Surface finish | sealed edge, chip-free |
| Thickness window | 0.03 – 6 mm |
| Edge condition | filamentation edge, optional post-polish |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Manufacturing capability
The core strength of Laser Cutting is chip-free free-form contours and dense hole arrays in thin and ultra-thin glass. The honest limit: aspect ratio in a single pass tops out near 10:1; thicker sections shift to coring or ultrasonic work. Both belong on the drawing before quoting, not after.
One material, many routes: on ITO Coated Glass we also quote edge grinding, cnc machining, drilling, coring, and multi-step drawings are the norm rather than the exception.
Design guidance
The shop-floor rules that matter here:
- Material note: machining happens film-side-aware: scribing, edge deletion and contact zones are defined before cutting.
- Process boundary: aspect ratio in a single pass tops out near 10:1; thicker sections shift to coring or ultrasonic work.
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
The full rules live in our tolerance design guide and holes and edges design guide.
Where these parts end up
laser cutting ito coated glass shows up across semiconductor equipment (view ports, wafer carriers, plasma rings, chamber windows); machine vision (camera windows, ring-light diffusers, calibration plates); optical sensors (sensor windows, filter caps, lens covers). Background reading on the underlying material science: ScienceDirect: indium tin oxide.
Dimensions still moving? Configure this part live in the 3D builder below, or open the full custom glass machining 3D builder to start from a blank canvas.
For adjacent specifications, see laser glass cutting, ITO coating process, machining tolerance guide.
Buyer questions, answered
What tolerances are achievable on ITO Coated Glass parts?
Ground features hold +/-0.01 mm and lapped thickness reaches +/-0.003 mm. Machining happens film-side-aware: scribing, edge deletion and contact zones are defined before cutting.
What thickness range do you stock for ITO Coated Glass?
Standard stock spans 0.30 – 3.0 mm substrates, with blanks up to 400 x 300 mm. Other formats are sourced per order.
How does ITO Coated Glass behave under heat?
CTE is substrate dependent and continuous service reaches 350 C (coating stable), which is what drives its use where transparent conductivity matters.
What accuracy does laser cutting hold?
+/-0.02 mm contour with minimum features of 0.10 mm hole diameter. Aspect ratio in a single pass tops out near 10:1; thicker sections shift to coring or ultrasonic work.
Specifications on this page were last reviewed by our engineering team in July 2026.