SHANGHAI FAMOUS TRADE CO.,LTD
| Orientation | C axis (0001) to A(11-20) 5°off |
| Matarial | 99.999% Sapphire Crystal |
| TTV | <15um |
| Bow | <50um |
| Polished | DSP or SSP |
| Diameter | Customized |
| Brand Name | zmsh |
| Place of Origin | China |
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Product Specification
| Orientation | C axis (0001) to A(11-20) 5°off | Matarial | 99.999% Sapphire Crystal |
| TTV | <15um | Bow | <50um |
| Polished | DSP or SSP | Diameter | Customized |
| Brand Name | zmsh | Place of Origin | China |
| High Light | 3'' Sapphire Wafer Al2O3 ，Sapphire Wafer Al2O3 | ||
Sapphire Wafer – Off C-axis toward M-plane 8° , Al₂O₃, Diameter 2"/3"/4"/6"/8", Custom Thickness
This high-precision sapphire wafer features a 8° off from C-axis toward M plane orientation and 99.999% (5N) purity, optimized for superior epitaxial growth in advanced optoelectronic and semiconductor applications. Available in standard diameters (2" to 8") with customizable thicknesses, it provides exceptional crystallographic uniformity, ultra-low defect density, and outstanding thermal/chemical stability. The controlled 1° off-cut angle enhances GaN and AlN epitaxy by reducing step-bunching defects, making it ideal for high-performance LEDs, laser diodes, power electronics, and RF devices.
Key Features of Sapphire Wafer
Precision Off-Cut Orientation
8° off from C-axis toward M plane, engineered to improve epitaxial film uniformity and minimize defects in GaN-based devices.
Ultra-High Purity (5N Al₂O₃)
99.999% purity with trace impurities (Fe, Ti, Si) <5 ppm, ensuring optimal electrical and optical performance.
Diameters: 2", 3", 4", 6", 8" (±0.1 mm tolerance).
Thickness: 100 µm to 1,500 µm (±5 µm tolerance), tailored for
specific applications.
Epi-ready polish: Ra <0.5 nm (front side) for defect-free thin-film deposition.
Thermal stability: Melting point ~2,050°C, suitable for
high-temperature processes (MOCVD, MBE).
Optical transparency: >85% transmission (UV to mid-IR: 250 nm–5,000 nm).
Mechanical robustness: 9 Mohs hardness, resistant to chemical etching and abrasion.
Applications of Sapphire Wafer
Optoelectronics
GaN-based LEDs/Laser Diodes: Blue/UV LEDs, micro-LEDs, and VCSELs.
High-power laser windows: CO₂ and excimer laser components.
Power & RF Electronics
HEMTs (High-Electron-Mobility Transistors): 5G/6G power amplifiers and radar systems.
Schottky diodes and MOSFETs: High-voltage devices for electric vehicles.
Industrial & Defense
IR windows and missile domes: High transparency in harsh environments.
Sapphire sensors: Corrosion-resistant covers for industrial monitoring.
Quantum & Research Technologies
Substrates for superconducting qubits (quantum computing).
SPDC (Spontaneous Parametric Down-Conversion) crystals for quantum optics.
Semiconductor & MEMS
SOI (Silicon-on-Insulator) wafers for advanced ICs.
MEMS pressure sensors requiring chemical inertness.
Specifications
| Parameter | Value |
|---|---|
| Diameter | 2", 3", 4", 6", 8" (±0.1 mm) |
| Thickness | Custom (100–1,500 µm ±5 µm) |
| Orientation | off C-axis toward M plane 8° |
| Purity | 99.999% (5N Al₂O₃) |
| Surface Roughness (Ra) | <0.5 nm (epi-ready) |
| Dislocation Density | <500 cm⁻² |
| TTV (Total Thickness Variation) | <10 µm |
| Bow/Warp | <15 µm |
| Optical Transparency | 250–5,000 nm (>85%) |
Q&A
Q1: Can I request a different off-cut angle (e.g., 0.5° or 2°)?
A2: Yes. Custom off-cut angles are available with ±0.1° tolerance.
Q2: What’s the maximum thickness available?
A6: Up to 1,500 µm (1.5 mm) for mechanical stability in high-stress applications.
Q3: How should wafers be stored to prevent contamination?
A10: Store in cleanroom-compliant cassettes or nitrogen cabinets (20–25°C, humidity <40%).
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2013
Total Annual:
1000000-1500000
Ecer Certification：
Verified Supplier
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi... SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi...
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