Quick answer: Metallization Quartz Glass covers Quartz Glass (CTE 0.59 x 10^-6 /K, 260 nm – 2.5 um); films 50 nm – 2 um, patterned to 10 um lines. Prototypes ship in 5-10 working days.
The point of metallization quartz glass is simple: solderable pads, mirrors and electrodes on glass. We deposit it by sputter + lift-off or shadow mask onto Quartz Glass and verify films 50 nm – 2 um, patterned to 10 um lines on every lot.
Key parameters
| Material | Quartz Glass (GE214-equivalent, semiconductor grade) |
|---|---|
| Thermal expansion (CTE) | 0.59 x 10^-6 /K |
| Service temperature | 1,050 C continuous |
| Transmission range | 260 nm – 2.5 um |
| Density | 2.20 g/cm3 |
| Knoop hardness | 500 kg/mm2 |
| Refractive index | 1.459 @ 587 nm |
| Stock thickness | 0.20 – 60 mm |
| Maximum blank size | 450 mm diameter |
| Treatment | Metallization – Cr/Au, Ti/Pt or Al thin films |
| Specification | films 50 nm – 2 um, patterned to 10 um lines |
| Deposition / method | sputter + lift-off or shadow mask |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Getting the drawing right
Before sending the RFQ, check these against your drawing:
- Material note: natural-quartz batches vary in metallic ppm, so semiconductor lots need certs per melt.
- Sequence matters: all machining happens before metallization; post-coating rework is not economical.
- 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.
Manufacturing capability
One material, many routes: on Quartz Glass we also quote lapping, laser cutting, polishing, ultrasonic machining, and multi-step drawings are the norm rather than the exception.
Application context
Orders for metallization quartz glass cluster in semiconductor equipment (view ports, wafer carriers, plasma rings, chamber windows); laboratory instruments (cuvettes, sight glasses, stir-cell windows). Background reading on the underlying material science: ScienceDirect: quartz 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.
Engineers scoping this work usually also review JGS1 quartz glass, precision glass grinding, high-purity quartz 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 Quartz Glass parts?
Ground features hold +/-0.01 mm and lapped thickness reaches +/-0.003 mm. Natural-quartz batches vary in metallic ppm, so semiconductor lots need certs per melt.
What thickness range do you stock for Quartz Glass?
Standard stock spans 0.20 – 60 mm, with blanks up to 450 mm diameter. Other formats are sourced per order.
How does Quartz Glass behave under heat?
CTE is 0.59 x 10^-6 /K and continuous service reaches 1,050 C continuous, which is what drives its use where fused from natural quartz crystal matters.
Specifications on this page were last reviewed by our engineering team in October 2026.