Coring FTO Coated Glass – FTO Coated Glass (CTE substrate dependent, 80 – 82% visible @ 7 ohm/sq); Coring to diameter +/-0.05 mm. No minimum order; DFM review included with every RFQ.
Ask any process engineer what makes fto coated glass difficult and the answer is specific: the harder FTO film abrades diamond tooling faster and edges need post-cut inspection for film lift. Our coring line is tooled around exactly that – diamond core drills with rotary fixtures – holding diameter +/-0.05 mm on parts from 1 – 60 mm thick.
Specification envelope
| 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 | Coring |
| Working tolerance | diameter +/-0.05 mm |
| Minimum feature | 2 mm core diameter |
| Surface finish | ground bore, honed option |
| Thickness window | 1 – 60 mm |
| Edge condition | entry/exit chamfer standard |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Process window
Coring earns its place through large-diameter discs, rings and through-bores from plate stock up to 60 mm thick. Its boundary condition – wall thickness between adjacent cores should exceed 2 mm to avoid bridge cracking – is the first thing our DFM review checks.
Beyond this page, FTO Coated Glass routinely runs through dicing, etching, laser cutting, cnc machining in our shop – most real parts combine two or three of these steps.
DFM notes from the shop floor
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: wall thickness between adjacent cores should exceed 2 mm to avoid bridge cracking.
- 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.
Who orders this
coring fto coated glass shows up across microfluidic devices (chips, manifolds, via plates, bonded stacks); oled packaging (cover lids, frit-seal frames, fill-port plates); medical diagnostics (flow cells, slides, microplate bottoms, cuvette windows). Background reading on the underlying material science: ScienceDirect: FTO glass.
Dimensions still moving? Configure this part live in the 3D + 2D builder below, or open the full custom glass machining 3D + 2D builder to start from a blank canvas.
For adjacent specifications, see FTO conductive glass, custom FTO glass, custom ITO glass.
Common questions
What equipment runs the coring work?
Diamond core drills with rotary fixtures.
Is there a minimum order for coring fto coated glass?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Specifications on this page were last reviewed by our engineering team in September 2026.