150mm & 200mm Fused Silica Borosilicate Wafers with 0.3-0.4mm Thickness and Flat/Notch Edge Grinding
BonTek specializes in manufacturing precision fused silica and borosilicate glass wafers in 150mm and 200mm diameters, featuring customizable thickness options with flat or notch edge grinding. These high-purity glass substrates are engineered for demanding applications in semiconductor processing, optical systems, and display technologies.
| Specification | 150mm (6") | 200mm (8") |
|---|---|---|
| Diameter | 150mm | 200mm |
| Tolerance | ±0.2mm | ±0.2mm |
| Thickness | 0.30mm or more | 0.40mm or more |
| Primary Reference Flat | 47.5mm | Semi-notch |
| LTV (5mm×5mm) | < 0.5μm | < 0.5μm |
| TTV | < 3μm | < 3μm |
| Bow | ±30μm | ±40μm |
| Warp | ≤ 40μm | ≤ 70μm |
| Edge Rounding | Compliant with SEMI M1.2 Standard / IEC62276 | |
| Surface Type | Single Side Polished / Double Sides Polished | |
| Polished Side Ra | ≤ 1nm | |
| Back Side Criteria | General 0.2-0.7μm or customized | |
| Manufacturer | Material Types |
|---|---|
| SCHOTT | Borofloat33 / BK7 / B270 / D263 etc. |
| CORNING | Eagle XG, Fused Silica 7980 / 7978 / 7979 etc. |
| Feilihua | Fused Silica JGS1 / JGS2 & Single Quartz etc. |
| OHARA | SK-1300, SK-1310 |
| GM | H-K9L / Soda Lime etc. |
| Density (@ 25°C/77°F) | 2.23 g/cm³ |
| Modulus of Elasticity | 63 kN/mm² |
| Knoop Hardness HK 0.1/20 | 480 |
| Poisson's Ratio | 0.2 |
| Dielectric Constant (@ 1 MHz & 25°C) | 4.6 |
| Loss Tangent (@ 1 MHz & 25°C) | 37 × 10⁻⁴ |
| Dielectric Strength (@ 50 Hz & 25°C) | 16 kV/mm |
| Refractive Index (nd) | 1.472 |
| Dispersion (nF - nC) | 71.9 × 10⁻⁴ |
We are recognized as piezo wafer specialists, with over 30 years of experience in single crystal quartz manufacturing. Our expertise extends to LiNbO3, LiTaO3, quartz glass, LGS, and CTGS materials. We are the premier supplier for piezo quartz applications, exporting millions of quartz blanks annually with superior angle precision for AT, SC, and IT cuts.
Yes, we offer comprehensive customization services. Our experienced team can fabricate wafers according to your specific requirements and provide technical guidance if needed. We also maintain standard wafer inventory for immediate availability.
Yes, we can ship using your preferred courier service (DHL, FedEx, UPS, etc.) under your account. We optimize packaging to minimize shipping costs while ensuring product safety. Alternatively, we can handle freight arrangements using our established courier partnerships.
We employ specialized packaging with adequate cushioning and buffer materials in properly sized cartons. All packages are clearly marked as fragile. In case of transit damage, follow our acceptance check procedure: document the condition before removing products from packaging and contact us immediately for resolution.
Factory visits are welcome and encouraged for large quantity purchases and long-term partnerships. We have hosted numerous international clients and also offer videoconferencing options for remote inspections.
- Handle all packages with care upon receipt
- Inspect outer carton condition before opening
- Document packaging alignment with photos
- Open vacuum packaging only in clean room environments
- If damage is detected, photograph/video immediately without removing products from packaging
- Contact us immediately for problem resolution
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.