Quick answer: Dicing FTO Coated Glass covers FTO Coated Glass (CTE substrate dependent, 80 – 82% visible @ 7 ohm/sq); Dicing to +/-0.01 mm index accuracy. Prototypes ship in 5-10 working days.
We dice FTO Coated Glass daily, in thicknesses from 0.05 – 3 mm. The controlling numbers: +/-0.01 mm index accuracy working tolerance, 30 um kerf minimum features, and edge chipping under 15 um off the machine. Where the drawing asks for more, downstream lapping and polishing take over.
Specifications at a glance
| Material | FTO Coated Glass (TEC-7, TEC-15 equivalents) |
|---|---|
| Thermal expansion (CTE) | substrate dependent |
| Service temperature | 600 C (coating stable) |
| Transmission range | 80 – 82% visible @ 7 ohm/sq |
| Density | 2.23 – 2.50 g/cm3 |
| Knoop hardness | harder film than ITO |
| Refractive index | ~2.0 (FTO film) |
| Stock thickness | 1.1 – 3.2 mm substrates |
| Maximum blank size | 360 x 300 mm |
| Process | Dicing |
| Working tolerance | +/-0.01 mm index accuracy |
| Minimum feature | 30 um kerf |
| Surface finish | edge chipping under 15 um |
| Thickness window | 0.05 – 3 mm |
| Edge condition | saw edge, optional etch relief |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Capabilities and limits
The core strength of Dicing is singulating wafers into dies with tight index accuracy and low chipping. The honest limit: straight-line cuts only; contours route to laser cutting instead. Both belong on the drawing before quoting, not after.
One material, many routes: on FTO Coated Glass we also quote etching, edge grinding, coring, laser cutting, and multi-step drawings are the norm rather than the exception.
Specification advice
The shop-floor rules that matter here:
- Material note: the harder FTO film abrades diamond tooling faster and edges need post-cut inspection for film lift.
- Process boundary: straight-line cuts only; contours route to laser cutting instead.
- 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.
For the complete framework, see the tolerance design guide and the holes and edges design guide.
Who orders this
dicing fto coated glass shows up across microfluidic devices (chips, manifolds, via plates, bonded stacks); medical diagnostics (flow cells, slides, microplate bottoms, cuvette windows); laser systems (windows, beam splitters, debris shields). Background reading on the underlying material science: ScienceDirect: FTO glass.
The fastest route to a quote is geometry: use the 3D configurator below, or the site-wide custom glass machining 3D builder for fully custom parts.
Engineers scoping this work usually also review wafer dicing process, FTO conductive glass, material selection guide.
Buyer questions, answered
What tolerances are achievable on FTO Coated Glass parts?
Ground features hold +/-0.01 mm and lapped thickness reaches +/-0.003 mm. The harder FTO film abrades diamond tooling faster and edges need post-cut inspection for film lift.
What thickness range do you stock for FTO Coated Glass?
Standard stock spans 1.1 – 3.2 mm substrates, with blanks up to 360 x 300 mm. Other formats are sourced per order.
How does FTO Coated Glass behave under heat?
CTE is substrate dependent and continuous service reaches 600 C (coating stable), which is what drives its use where thermal stability beyond ITO matters.
What accuracy does dicing hold?
+/-0.01 mm index accuracy with minimum features of 30 um kerf. Straight-line cuts only; contours route to laser cutting instead.
Specifications on this page were last reviewed by our engineering team in July 2026.