D263 Thin Glass Glass Wafers for Wafer-Level Packaging: D263 Thin Glass (CTE 7.2 x 10^-6 /K, 350 nm – 2.0 um). Single-piece prototypes to production volumes, quoted from your drawing.
d263 thin glass glass wafers for wafer-level packaging programs need alkali-free thin lids with hermetic-bond edges. D263 Thin Glass is the fit here because it offers down-drawn fire-polished surfaces. Typical parts: cover lids, frit-seal frames, fill-port plates.
Specifications at a glance
| Material | D263 Thin Glass (SCHOTT D 263 T eco) |
|---|---|
| Thermal expansion (CTE) | 7.2 x 10^-6 /K |
| Service temperature | 400 C (Tg 557 C) |
| Transmission range | 350 nm – 2.0 um |
| Density | 2.51 g/cm3 |
| Knoop hardness | 590 kg/mm2 |
| Refractive index | 1.523 @ 587 nm |
| Stock thickness | 0.03 – 1.1 mm |
| Maximum blank size | 440 x 360 mm |
| Wafer formats | 2", 3", 4", 6", 8" and 12" with SEMI flats or notch |
| TTV | under 3 – 5 um by format |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Capabilities and limits
One material, many routes: on D263 Thin Glass we also quote cnc machining, drilling, laser cutting, dicing, and multi-step drawings are the norm rather than the exception.
Design guidance
The shop-floor rules that matter here:
- Material note: ultra-thin stock cannot take conventional clamping; parts are machined on wax or UV-tape carriers.
- 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.
Application context
Orders for d263 thin glass glass wafers for wafer-level packaging cluster in led packaging (groove covers, phosphor carriers, package windows); 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: SCHOTT D 263 thin glass.
The fastest route to a quote is geometry: use the 3D builder below, draw a dimensioned 2D drawing from it, or open the site-wide custom glass machining 3D + 2D builder for fully custom parts.
Related reading on this site: etched LED/OLED covers, alkali-free display glass, tolerance design guide.
Common questions
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.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
What tolerances are achievable on D263 Thin Glass parts?
Ground features hold +/-0.01 mm and lapped thickness reaches +/-0.003 mm. Ultra-thin stock cannot take conventional clamping; parts are machined on wax or UV-tape carriers.
What thickness range do you stock for D263 Thin Glass?
Standard stock spans 0.03 – 1.1 mm, with blanks up to 440 x 360 mm. Other formats are sourced per order.
How does D263 Thin Glass behave under heat?
CTE is 7.2 x 10^-6 /K and continuous service reaches 400 C (Tg 557 C), which is what drives its use where down-drawn fire-polished surfaces matters.
Specifications on this page were last reviewed by our engineering team in October 2026.