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Sapphire Substrate is a high-performance single crystal material made from ultra-pure aluminum oxide (Al₂O₃). Thanks to its exceptional optical, mechanical, electrical, and thermal properties, sapphire has become one of the most widely used substrate materials in the semiconductor and optoelectronics industries. It serves as an ideal platform for epitaxial growth and is extensively used in the production of LEDs, GaN devices, RF components, SAW devices, optical windows, and advanced research applications.
Unlike ordinary glass or ceramic materials, a Single Crystal Sapphire is grown through advanced crystal growth technologies to form a continuous crystal lattice without grain boundaries. This unique crystal structure provides superior hardness, excellent chemical stability, high thermal conductivity, and outstanding electrical insulation, making it the preferred choice for demanding industrial environments.
As a professional Sapphire Substrate Manufacturer and supplier, Shanghai Xinkehui Materials Co., Ltd. (XKH) offers a comprehensive range of Sapphire Wafers for semiconductor, optical, and scientific applications. Our products are manufactured under strict quality control standards and processed with advanced cutting, grinding, lapping, polishing, and inspection equipment to ensure consistent quality and high precision.
Our Semiconductor Sapphire Substrates are widely used for GaN epitaxial growth in LED Sapphire Wafer manufacturing. Sapphire’s excellent lattice compatibility with gallium nitride (GaN) makes it one of the most popular substrate materials for high-brightness LEDs. In addition, sapphire substrates are commonly used in surface acoustic wave (SAW) filters, laser systems, optical windows, infrared devices, and high-frequency electronic components.
Beyond semiconductor applications, Optical Sapphire is valued for its exceptional transparency across ultraviolet, visible, and infrared wavelengths. Combined with its high hardness (Mohs 9), scratch resistance, and excellent corrosion resistance, sapphire is an ideal material for optical components operating in harsh environments.
XKH supplies a wide variety of Sapphire Substrates in standard sizes including 2-inch, 3-inch, 4-inch, 6-inch, and 8-inch wafers, while custom diameters, thicknesses, crystal orientations, and surface finishes are also available upon request. We offer C-plane, A-plane, R-plane, M-plane, and custom orientations with SSP, DSP, and Epi-ready polishing options to meet the requirements of research institutes, universities, LED manufacturers, semiconductor companies, and industrial customers worldwide.
Whether you require prototype quantities or large-volume production, XKH is committed to delivering high-quality sapphire wafer solutions with competitive pricing, fast lead times, and reliable technical support.
1. Excellent Crystal Quality
Our Single Crystal Sapphire Substrates are manufactured using high-purity aluminum oxide crystal with an extremely low defect density. Each wafer is carefully inspected to ensure excellent crystal uniformity, precise orientation, and superior surface quality, making it suitable for demanding semiconductor and optical applications.
2. Outstanding Mechanical Strength
Sapphire is recognized as one of the hardest engineering materials available.
Key Benefits
These properties make sapphire substrates ideal for long-term industrial use and precision manufacturing.
3. High Optical Transparency
Optical Sapphire offers exceptional light transmission over a broad wavelength range, from ultraviolet (UV) through visible light to infrared (IR).
Advantages include:
4. Excellent Thermal Stability
Sapphire maintains excellent structural stability under extreme temperatures.
Its outstanding thermal properties include:
These characteristics make sapphire an excellent substrate material for GaN epitaxial growth and other high-temperature semiconductor manufacturing processes.
5. Superior Electrical Insulation
Unlike conductive semiconductor materials, sapphire provides exceptional electrical insulation while maintaining excellent thermal performance.
Applications include:
Its insulating properties help improve device reliability and electrical performance.
6. High Precision Processing
Shanghai Xinkehui Materials utilizes advanced precision processing technologies to manufacture high-quality Sapphire Wafers with excellent dimensional accuracy and surface finish.
Available processing options include:
Every wafer undergoes rigorous quality inspection before shipment to ensure compliance with customer specifications.
7. Custom Manufacturing Solutions
Every application has unique technical requirements. XKH provides comprehensive customization services to meet the specific needs of customers worldwide.
We support customization of:
Whether you need sapphire substrates for research, pilot production, or mass manufacturing, our experienced engineering team can provide tailored solutions with fast delivery and professional technical support.
| Item | Specification |
|---|---|
| Material | Single Crystal Al₂O₃ |
| Crystal Structure | Hexagonal |
| Purity | 99.99% |
| Diameter | 2″,3″,4″,6″,8″ |
| Thickness | Customized |
| Orientation | C,A,R,M Plane |
| Surface | DSP / SSP |
| Roughness | Ra<0.2nm |
| TTV | ≤10μm |
| Bow | ≤20μm |
| Warp | ≤20μm |
| Edge | Chamfer |
| Flat / Notch | Available |
| Packaging | Cleanroom Wafer Box |
Thanks to its exceptional hardness, high thermal stability, excellent electrical insulation, and outstanding optical transparency, Sapphire Substrate is widely used across semiconductor, optoelectronic, scientific, and industrial applications. Shanghai Xinkehui Materials supplies high-quality Single Crystal Sapphire Wafers for a broad range of advanced technologies worldwide.
1. LED Manufacturing
Sapphire Substrates are the most commonly used substrates for gallium nitride (GaN) epitaxial growth in the LED industry. Their excellent crystal quality, thermal stability, and lattice compatibility with GaN enable the production of high-brightness LEDs with superior efficiency and long-term reliability. Sapphire wafers are widely used in general lighting, automotive lighting, display backlighting, and UV-LED applications.
2. RF & SAW Devices
High-quality Sapphire Wafers are extensively used in radio frequency (RF) and Surface Acoustic Wave (SAW) devices. Their excellent electrical insulation and low dielectric loss help improve signal transmission and device performance. These substrates are commonly applied in RF filters, wireless communication equipment, mobile devices, GPS systems, and 5G communication technologies.
3. Power Electronics
As the demand for high-efficiency power devices continues to grow, Semiconductor Sapphire Substrates have become an important material for GaN-based power electronics. Sapphire provides excellent thermal resistance and electrical insulation, making it suitable for power amplifiers, high-frequency switching devices, electric vehicles (EVs), renewable energy systems, and industrial power control applications.
4. Optical Windows & Precision Optics
Optical Sapphire offers exceptional transparency from ultraviolet (UV) to infrared (IR) wavelengths while maintaining outstanding mechanical strength. It is widely used for optical windows, laser systems, infrared imaging equipment, medical devices, scientific instruments, aerospace optics, and defense applications where high durability and optical performance are essential.
5. Semiconductor Research
Universities, research institutes, and industrial laboratories rely on Single Crystal Sapphire Substrates for semiconductor material research, thin-film deposition, epitaxial growth, MEMS development, and advanced material characterization. XKH supports research customers with customized wafer specifications, small-quantity orders, and fast delivery.
6. Aerospace & Defense
The superior mechanical strength, thermal stability, and corrosion resistance of sapphire make it an ideal material for aerospace and defense applications. Sapphire substrates are commonly used in high-temperature optical components, protective windows, infrared sensors, aerospace instrumentation, satellite systems, and other mission-critical environments that require exceptional durability and reliability.
Choosing the right Sapphire Substrate Manufacturer is essential for ensuring consistent product quality, reliable delivery, and professional technical support. With years of experience in advanced crystal materials, Shanghai Xinkehui Materials Co., Ltd. (XKH) is committed to providing high-quality Sapphire Substrates and customized wafer solutions to customers worldwide. From research laboratories to large-scale semiconductor manufacturers, we deliver products that meet the highest industry standards.
1. Professional Sapphire Manufacturer
With years of expertise in the crystal materials industry, XKH specializes in the manufacturing and supply of high-quality Single Crystal Sapphire Substrates and Sapphire Wafers. We understand the strict requirements of the semiconductor, optoelectronics, and research sectors, and continuously improve our manufacturing processes to provide reliable products with consistent performance.
2. Advanced Manufacturing Equipment
Our production facility is equipped with advanced processing and inspection equipment to ensure precision and consistency throughout every manufacturing stage.
3. Our manufacturing capabilities include:
Every manufacturing process is carefully controlled to achieve excellent dimensional accuracy and superior surface quality.
4. Strict Quality Control
Quality is at the core of everything we do. Every Sapphire Wafer undergoes comprehensive inspections before shipment to verify crystal orientation, dimensions, surface finish, thickness, flatness, and overall quality.
Our strict quality management system helps ensure that every product delivered to customers meets their specifications and application requirements.
5. OEM & Custom Manufacturing Services
Different applications require different substrate specifications. XKH provides flexible OEM and customization services to satisfy the unique needs of customers.
We support customization of:
Whether you require prototype quantities or large-volume production, we can provide tailored sapphire substrate solutions.
6. Fast Delivery & Reliable Supply
To shorten lead times, we maintain inventory for many standard sapphire wafer specifications. For customized products, our efficient production management system enables fast manufacturing and on-time delivery, helping customers accelerate their research and production schedules.
7. Global Export Experience
XKH has established long-term business relationships with customers across Europe, the United States, Japan, South Korea, Singapore, India, and many other countries and regions. Our products are widely used by universities, research institutes, semiconductor companies, LED manufacturers, and industrial enterprises worldwide.
With extensive international export experience, we understand global quality standards, packaging requirements, and shipping procedures, ensuring a smooth purchasing experience for every customer.
8. Professional Technical Support
Our experienced sales engineers and technical specialists work closely with customers to recommend the most suitable sapphire substrate specifications based on their application requirements. From material selection and crystal orientation to polishing options and custom processing, we provide responsive technical assistance throughout the entire purchasing process.
9. Competitive Factory Pricing
As a direct manufacturer and supplier, XKH offers factory-direct pricing without compromising quality. By combining advanced manufacturing capabilities, strict quality control, and efficient production management, we provide cost-effective sapphire substrate solutions that help customers reduce procurement costs while maintaining outstanding product performance.
Whether you are looking for standard Sapphire Wafers or fully customized Single Crystal Sapphire Substrates, Shanghai Xinkehui Materials is your trusted partner for quality, innovation, and reliable global supply.
1. What is a Sapphire Substrate?
A Sapphire Substrate is a wafer made from high-purity single crystal aluminum oxide (Al₂O₃). Due to its excellent optical transparency, high hardness, superior thermal stability, and outstanding electrical insulation, it is widely used in LED manufacturing, GaN epitaxy, RF & SAW devices, power electronics, optical systems, and semiconductor research.
2. What is Sapphire made of?
Sapphire is made from ultra-high-purity aluminum oxide (Al₂O₃) that is grown into a single crystal using advanced crystal growth technologies. Unlike glass or polycrystalline ceramics, Single Crystal Sapphire has a continuous crystal lattice, providing exceptional mechanical strength, chemical resistance, and optical performance.
3. What crystal orientations are available?
Shanghai Xinkehui Materials supplies Sapphire Substrates in a variety of crystal orientations, including C-plane (0001), A-plane (11-20), R-plane (1-102), M-plane (10-10), and custom orientations based on customer requirements.
4. What wafer sizes do you supply?
We offer standard Sapphire Wafer sizes including 2-inch, 3-inch, 4-inch, 6-inch, and 8-inch. Custom diameters, thicknesses, and special dimensions are also available to meet specific application requirements.
5. Can you provide Epi-ready Sapphire Wafers?
Yes. We provide Epi-ready Sapphire Wafers with high-precision polishing and ultra-low surface roughness, making them suitable for GaN epitaxial growth, LED manufacturing, and advanced semiconductor applications.
6. Do you support custom wafer thickness?
Yes. We can manufacture Sapphire Substrates with customized thicknesses according to your drawings or technical specifications. Our engineering team can recommend suitable thicknesses based on your application.
7. What polishing options do you offer?
We provide a variety of surface finishes, including Single Side Polished (SSP), Double Side Polished (DSP), and Epi-ready polishing. Custom surface roughness and polishing specifications are also available upon request.
8. What is your minimum order quantity (MOQ)?
Our standard MOQ is 25 pieces for research and development purposes. We also support pilot production, small-volume orders, and large-scale manufacturing for industrial customers.
9. Can I order a sample before mass production?
Yes. Sample orders are welcome. Customers can purchase a single Sapphire Wafer or a small batch to evaluate quality, dimensions, and performance before placing larger production orders.
10.What is your typical delivery time?
Standard Sapphire Substrates are generally shipped within 1–2 weeks, depending on inventory availability. Customized products usually require 2–4 weeks, depending on specifications and production complexity.
11. Do you provide inspection reports or certificates?
Yes. We can provide inspection reports, dimensional measurement reports, crystal orientation verification, and other quality documents upon request. Certificates of Analysis (COA) are also available for selected products.
12. How are the Sapphire Wafers packaged?
Each Sapphire Wafer is carefully cleaned and packed in a cleanroom-compatible wafer container with protective cushioning materials. Export packaging is designed to prevent contamination, scratches, and damage during international transportation.
13. Which industries use Sapphire Wafers?
Sapphire Wafers are widely used in LED manufacturing, semiconductor fabrication, GaN devices, RF & SAW filters, optical windows, laser systems, infrared optics, medical equipment, aerospace, defense, universities, research institutes, and advanced laboratories.
14. Can you export Sapphire Substrates worldwide?
Yes. Shanghai Xinkehui Materials exports Sapphire Substrates to customers worldwide, including Europe, the United States, Japan, South Korea, Singapore, India, and many other countries. We have extensive experience in international shipping, export documentation, and customs requirements.
15.How do I request a quotation?
Simply send us your technical requirements, including wafer diameter, thickness, crystal orientation, surface finish, quantity, and any special specifications. Our sales team will provide a detailed quotation, technical confirmation, and delivery schedule as quickly as possible. If you are unsure about the specifications, our engineers will be happy to recommend the most suitable Sapphire Substrate solution for your application.
