MgO Substrates
Purity and Uniformity:
The MgO crystals used in our substrates exhibit exceptional purity, ensuring consistent performance across the entire product range.
Microscopically, the majority of MgO crystals have a grain size of at most 5 μm, ensuring a uniform microstructure that enhances overall reliability.
Electrical Insulation:
With an electrical insulation resistance of at least 10^10 Ω·cm at 300°C, our MgO Substrates are ideal for electrically insulating applications.
The ceramics have a dielectric constant of at most 10 at 100 kHz, making them suitable for high-frequency circuits and devices.
Thermal Conductivity:
The substrates boast a heat conductivity of at least 0.08 cal/cm·sec·°C at normal temperature, allowing for efficient heat dissipation in demanding environments.
Resistance to Humidity:
The MgO ceramics used in our substrates demonstrate excellent resistance to humidity, ensuring long-term stability and reliability in various climate conditions.
Surface Finish:
Both sides of the substrates are polished to a surface roughness (Ra) of ≤ 0.5 nm, providing a smooth surface for high-precision applications.
Applications: Optical Devices, High-Temperature Superconductors, Magneto-Optic Films, THz Band Generators/Receivers, Semiconductor Processing, etc.
Kingwin Optics is proud to present its high-quality MgO Substrates, engineered for various advanced applications in the fields of optics, electronics, and research. These substrates are meticulously crafted to meet the stringent requirements of researchers, engineers, and manufacturers worldwide.
Specifications:
| Main performance parameters | |
| Growth method | Arc melting method |
| Crystal structure | cube |
| Lattice constant | a=4.130 Å |
| Melting point (°C) | 2800 |
| purity | 99.95% |
| Density (g/cm.)3） | 3.58 |
| hardness | 5.5(MOHS) |
| Coefficient of Thermal Expansion (/°C) | 11.2×10-6 |
| Crystal cleavage plane | <100> |
| Optical transparency | >90%（200~400nm），>98%（500~1000nm） |
| Dielectric constant | ε= 9.65 |
| Thermal conductivity (kcal/degree cm sec) | 0.14 300°K |
| size | 10×3,10×5,10×10,15×15,,20×15,20×20, |
| dia2″ x 0.33mm dia2″ x 0.43mm 15 x 15mm | |
| thickness | 0.5mm,1.0mm |
| polished | Single-sided or double-sided |
| Crystal orientation | <001>±0.5º |
| Plane orientation accuracy: | ±0.5° |
| Edge Orientation Accuracy: | 2° (up to 1° for special requirements) |
| Beveled wafers | Wafers with edge-oriented crystal planes inclined at specific angles (1°-45°) can be processed according to specific needs |
| Ra: | ≤5Å(5μm×5μm) |
Advantages:
1.Purity and Uniformity:
- The MgO crystals used in our substrates exhibit exceptional purity, ensuring consistent performance across the entire product range.
- Microscopically, the majority of MgO crystals have a grain size of at most 5 μm, ensuring a uniform microstructure that enhances overall reliability.
2.Electrical Insulation:
- With an electrical insulation resistance of at least 10^10 Ω·cm at 300°C, our MgO Substrates are ideal for electrically insulating applications.
- The ceramics have a dielectric constant of at most 10 at 100 kHz, making them suitable for high-frequency circuits and devices.
3.Thermal Conductivity:
- The substrates boast a heat conductivity of at least 0.08 cal/cm·sec·°C at normal temperature, allowing for efficient heat dissipation in demanding environments.
4.Resistance to Humidity:
- The MgO ceramics used in our substrates demonstrate excellent resistance to humidity, ensuring long-term stability and reliability in various climate conditions.
5.Surface Finish:
- Both sides of the substrates are polished to a surface roughness (Ra) of ≤ 0.5 nm, providing a smooth surface for high-precision applications.
6.Customizable Sizes and Orientations:
- We offer a wide range of substrate sizes, including 10x10mm to 300mm in diameter, catering to diverse application needs.
- Custom orientations such as <100>+/-0.5° and <001>+/-1.0° can be provided upon request, ensuring precise alignment for specific applications.
Applications:
- Optical Devices: MgO Substrates are widely used in optical waveguides, optical radiation receivers, and photolithographic systems due to their high optical transparency and low absorption coefficients.
- High-Temperature Superconductors: The exceptional thermal conductivity and electrical insulation properties of MgO Substrates make them ideal for supporting high-temperature superconducting materials in research and development.
- Magneto-Optic Films: Researchers and manufacturers rely on our MgO Substrates to create magneto-optic films for applications such as magnetic storage media and optical isolators.
- THz Band Generators/Receivers: The substrates’ unique material properties enable their use in terahertz (THz) band devices, where high-speed and low-loss performance are crucial.
- Semiconductor Processing: MgO Substrates are also used as growth substrates for various semiconductor materials, such as gallium nitride (GaN) and aluminum nitride (AlN), in the microelectronics industry.
Kingwin Optics’ MgO Substrates represent the pinnacle of quality and performance in the field of advanced materials. With their exceptional purity, electrical insulation, thermal conductivity, and surface finish, these substrates are ideally suited for a wide range of applications across optics, electronics, and research. Trust Kingwin Optics for all your MgO Substrate needs.
