2-inch DSP Sapphire Wafer 200 µm Al₂O₃ for LED & Optical Applications
2-inch DSP Sapphire Wafer 200 µm Al₂O₃ for LED & Optical Applications
Product Overview
Our 2-inch Double Side Polished (DSP) sapphire wafers are precision-engineered from high-purity monocrystalline aluminum oxide (Al₂O₃). With ultra-flat, epi-ready surfaces and minimal bow, these wafers are ideal for GaN epitaxial growth, high-precision optics, semiconductor devices, and camera applications.
Product Highlights & Specifications
| Parameter | Specification |
|---|---|
| Material | High-purity monocrystalline sapphire (Al₂O₃) |
| Diameter | 50.8 mm (2-inch) |
| Thickness | 200 µm ± 15 µm |
| Surface Finish | Double Side Polished (DSP), epi-ready |
| Wafer Orientation | C-axis (0001) standard; custom orientations available |
| Bow | <10 µm |
| Total Thickness Variation (TTV) | ≤ 10 µm |
| Warp | ≤ 10 µm |
| Front Surface Roughness | Ra ≤ 0.3 nm |
| Back Surface Roughness | Ra = 1.0 ± 0.2 µm |
| Edge | 45° or C-shape |
| Packaging | Vacuum-sealed, Class 100 cleanroom, 25 pcs per cassette |
| Customization | Thickness, orientation, and shape available on request |
Key Advantages
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High Hardness: Mohs 9, second only to diamond, ensuring excellent scratch and wear resistance.
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Optical Transparency: Wide spectral transmission from near-UV to mid-IR for high-efficiency photon use.
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Thermal & Chemical Stability: Thermal conductivity ~42 W/m·K, stable up to 1800–1900°C, resistant to acids and alkalis.
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Precision Manufacturing: Ultra-flat surfaces with low bow and TTV, suitable for epi-ready applications.
Applications
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Substrates for GaN epitaxial growth (LEDs, laser diodes)
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High-precision optical components (lenses, windows)
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Semiconductor test substrates
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Infrared imaging systems
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Photonics and camera modules
FAQ
Q: Can thickness and orientation be customized?
A: Yes, custom thicknesses from 100 µm to 500 µm and orientations (C, A, R, M) are available.
Q: What is the minimum order quantity?
A: 25 pcs per order.
Q: How is quality ensured?
A: Each wafer undergoes pre-production sample testing, final inspection, and Class 100 cleanroom vacuum packaging.
Related Products
100um 170um 200um DSP Sapphire Wafers Ultrathin Thickness 2inch
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.