SHANGHAI FAMOUS TRADE CO.,LTD
| Hardness | 9 Mohs |
| Material | 99.999% Sapphire Crystal |
| Density | 3.98 g/cm3 |
| Orientation | Can be customized |
| Size | 2"or 3"or 4"or 6"or 8" |
| Thickness | Customized |
| Surface | SSP or DSP |
| TTV | Depend on size |
| WRAP/BOW | Depend on size |
| Brand Name | zmsh |
| Place of Origin | China |
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Product Specification
| Hardness | 9 Mohs | Material | 99.999% Sapphire Crystal |
| Density | 3.98 g/cm3 | Orientation | Can be customized |
| Size | 2"or 3"or 4"or 6"or 8" | Thickness | Customized |
| Surface | SSP or DSP | TTV | Depend on size |
| WRAP/BOW | Depend on size | Brand Name | zmsh |
| Place of Origin | China | ||
| High Light | customize orientation Sapphire Wafer ，4'' Sapphire Wafer ，Al2O3 Sapphire Wafer | ||
Sapphire Wafer Off C-axis toward M-Plane 20° Al₂O₃ Diameter 2"/3"/4"/6"/8", Custom Orientation
This ultra-high-purity sapphire wafer features off C-axis toward M-Plane 20° orientation with 99.999% (5N) Al₂O₃ purity, engineered for advanced epitaxial growth and specialized semiconductor applications. Available in standard diameters (2" to 8") with customizable orientations and thicknesses, it delivers exceptional crystallographic precision, ultra-low defect density, and superior thermal/chemical stability. The 1° off-cut toward the M-axis optimizes epitaxial film quality for GaN, AlN, and ZnO-based devices, making it ideal for high-performance LEDs, laser diodes, power electronics, and SAW/BAW filters.
Key Features of Sapphire Wafer
Precision Off-Cut Orientation:
20° off from C-axis toward M-Plane , reducing step-bunching defects and improving epitaxial layer uniformity.
Custom off-cut angles (0.2°–5°) available for specialized applications.
Ultra-High Purity (5N Al₂O₃):
99.999% purity with trace impurities (Fe, Ti, Si) <5 ppm, ensuring minimal electrical/optical losses.
Customizable Dimensions & Orientations:
Diameters: 2", 3", 4", 6", 8"
Thickness: 100 µm to 1,000 µm (±5 µm tolerance).
Alternative orientations: A-plane (1120), R-plane (1102), or mixed cuts upon request.
Superior Surface Quality:
Epi-ready polish: Ra <0.5 nm (front side) for defect-free thin-film deposition.
Double-side polishing (DSP): Ra <0.3 nm for optical applications.
Exceptional Material Properties:
Thermal stability: Melting point ~2,050°C, suitable for MOCVD/MBE processes.
Optical transparency: >85% transmission (UV to mid-IR: 250–5,000 nm).
Mechanical robustness: 9 Mohs hardness, resistant to chemical/abrasive wear.
Applications of Sapphire Wafer
Optoelectronics:
GaN-based LEDs/Laser Diodes: Blue/UV LEDs, micro-LEDs, and edge-emitting lasers.
Laser windows: High-power CO₂ and excimer laser components.
Power & RF Electronics:
HEMTs (High-Electron-Mobility Transistors): 5G/6G power amplifiers and radar systems.
SAW/BAW Filters: M-plane orientation enhances piezoelectric performance.
Industrial & Defense:
IR windows and missile domes: High transparency in extreme environments.
Sapphire sensors: Corrosion-resistant covers for harsh conditions.
Quantum & Research Technologies:
Substrates for superconducting qubits (quantum computing).
Nonlinear optics: SPDC crystals for quantum entanglement studies.
Semiconductor & MEMS:
SOI (Silicon-on-Insulator) wafers for advanced ICs.
MEMS resonators: High-frequency stability with M-plane cuts.
Specifications
| Parameter | Value |
|---|---|
| Diameter | 2", 3", 4", 6", 8" (±0.1 mm) |
| Thickness | 100–1,500 µm (±5 µm) |
| Orientation | off C-axis toward M-Plane 20° |
| 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: Why choose a 20° off from C-axis toward M-Plane for epitaxy?
A1: The M-axis off-cut improves adatom mobility during growth, reducing defects and enhancing uniformity in GaN films for high-power devices.
Q2: Can I request other off-cut directions (e.g., A-axis)?
A2: Yes. Custom orientations (A-plane, R-plane, or mixed cuts) are available with ±0.1° tolerance.
Q3: What’s the advantage of DSP for laser applications?
A3: DSP provides <0.3 nm roughness on both sides, reducing scatter losses for high-power laser optics.
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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