Single-crystal sapphire (Al₂O₃) is an exceptionally hard and transparent material that can be found in nature or grown synthetically. With its high thermal conductivity, outstanding mechanical strength, superior hardness, broad spectral transmission, and excellent dielectric properties, sapphire is ideal for components operating in harsh, high-temperature, corrosive, or biological environments.
Synthetic sapphire is produced by only a limited number of crystal growers worldwide, using different growth methods that influence crystal size, shape, and quality. After growth, raw sapphire undergoes multiple precision fabrication steps before becoming finished components.
Shanghai Xinkehui New Material Co., Ltd. (XKH), founded in 2002, is one of China’s largest suppliers of optical and semiconductor materials. Established to support academic researchers with high-quality wafers and scientific materials, XKH has since expanded into a comprehensive semiconductor materials provider. With a technically strong team, we are deeply engaged in the R&D of advanced electronic materials, particularly in the field of wafers and substrates.
Exceptional hardness & durability
Sapphire offers the highest hardness, strength, and wear resistance among commonly used optical materials, ensuring long service life even under mechanical stress.
Broad spectral transmission
With a transmission range from 0.20 μm (UV) through the visible spectrum and up to 3.5 μm (IR), sapphire is ideal for optical systems operating in UV, VIS, NIR, and MW regions.
Anisotropic crystal properties
Its rhombohedral crystal structure results in highly anisotropic optical and mechanical behavior. Properties such as birefringence, thermal expansion, and strength vary with crystal orientation—allowing optimized performance based on application needs.
Engineered for extreme environments
Sapphire performs reliably under high temperatures, intense pressure, corrosive chemicals, und abrasive or destructive conditions, making it ideal for demanding optical, industrial, and scientific applications.
Versatile crystal growth options
Different sapphire growth methods (KY, CZ, HEM, EFG, etc.) yield materials with distinct characteristics—such as size, purity, and thermal performance—allowing customers to select the most suitable grade for specific applications.
Over 20 years of proven expertise
Since 2002, XKH has supplied semiconductor and optical materials to global customers across multiple industries. Our long-term experience ensures stable quality and reliable delivery.
Trusted by industry leaders worldwide
The XKH brand stands for quality, consistency, and partnership. We serve OEMs, research institutions, laser manufacturers, semiconductor fabs, and optical system developers in more than 30 countries.
Deep technical understanding of crystal growth & fabrication
Our team is technically driven, with strong expertise in sapphire, SiC, silicon, GaAs, and other advanced materials. From ingot growth to wafer/substrate processing, we understand every step—ensuring better design support and successful outcomes.
Fast, efficient communication
We provide clear and responsive communication. RFQs are typically answered the same day or next day, and customers are updated at each stage—from quotation to production to shipment.
Comprehensive product chain & fast delivery
With a complete production chain covering SiC wafers, sapphire wafers, silicon wafers, and optical materials, we maintain inventory for standard items, reducing lead times from weeks or months to just days.
Reliable global sourcing & stable supply
XKH maintains close cooperation with top crystal growers in China and overseas. This ensures competitive pricing, secure supply, and high-quality materials that meet international standards.
Fully guaranteed quality
All XKH products undergo strict quality control and are fully warranted. We stand behind every wafer, substrate, and optical component we deliver.
| Sapphire Product | Applications / Uses | Industry / Markets |
|---|---|---|
| Sapphire Round Window |
Optical / UV / IR window Sensor window Chamber viewport Laser window Optical filter | Semiconductor Mfg, Optics, Defense / Aerospace, Medical, Electronics |
| Sapphire Square / Rectangle Window |
Chamber viewport Cover screen Waveguide / Waveplate AR / VR headsets Insulator / Protection | Defense / Aerospace, Power & Energy, Semiconductor Mfg, Consumer Technology |
| Saphir-Wafer |
Epitaxial substrate Embedded device Energy storage | Electronics, Power & Energy, Technology, Medical, Defense |
| Sapphire Ring / Collar / Plate |
Insulator / Protection Semi Mfg Chamber Components Heat Sink High Energy Capacitor | Semiconductor Mfg, Defense, Aerospace |
| Saphir-Rohr |
MW Plasma Etching Spectroscopy Laser / Illumination Systems | Semiconductor Mfg, Optics, Defense / Aerospace, Medical, Electronics |
| Sapphire Rod / Pin |
Guide Pin / Lift Pin for wafer mfg Semiconductor Chamber Component Industrial Component | Semiconductor Mfg, Electronics |
| Sapphire Dome |
Missile cone Camera dome Button, lens Protective window cover | Defense / Aerospace, Power & Energy, Consumer Technology |
| Sapphire Ingot / Core |
Optical Media Rohmaterial | Research & Higher Ed, Optics & Photonics |
| Complex Sapphire Components |
Showerhead, Wafer Carrier, Boat Prism, Beamsplitter Dental Bracket Laser / Illumination Systems | Semiconductor Mfg, Optics, Defense / Aerospace, Medical, Electronics |
