We can provide high temperature superconducting thin film substrate , magnetic thin films and ferroelectric thin film substrate , semiconductor crystal , optical crystal , laser crystal materials ,at the same time provide orientation and foreign universities and research institutes to provide high quality ( ultra smooth ,ultra smooth , ultra clean)
MgO Single Crystal
Magnesium oxide is an excellent single crystal substrate, which is widely used in the production of ferroelectric films, magnetic films, light spot films and high-temperature superconducting films. Because its dielectric constant and loss in the microwave band are very small, and large-area substrates (two inches in diameter and larger) can be obtained, it is one of the important high-temperature superconducting thin-film single-crystal substrates currently industrialized. It can be used to make high-temperature superconducting microwave filters and other devices required by mobile communication equipment. Our company uses chemical mechanical polishing to prepare high-quality atomic-level surface products, and can provide substrates with a maximum size of 2"x 2"x0.5mm.
Typical Physical Properties:
| Crystal Structure | Cubic a= 4.216 Å |
| Growth Method | Special Arc Melting |
| Typical Purity | > 99.95% |
| Density | 3.58 g/cm3 |
| Melt Point | 2852 °C |
| Hardness | 5.5 (Mohn) |
| Thermal Expansion | 12.8 x (10-6/°C) |
| Dielectric Constant | 9.8 |
| Optical Transmission | > 90% @ 200 ~ 400 nm > 98 % 500 ~ 1000 nm |
| Crystal Prefection | No visible inclusions and micro cracking |
| X-Ray rocking curve available |
| Orientaion | <100>、<110>、<111>±0.5º |
| Size | dia2” x 0.5mm 25 x 25 x 0.5mm 15 x 15 x 0.5mm 10 x 10 x 0.5mm 10 x 5 x 0.5mm 5 x 5 x 0.5mmmore sizes can be supplied ,please check with us |
| Surface Polishing | SSP DSP |
| Surface Roughness | Surface roughness(Ra):<=5A |
Xrd and Rocking Curve:
Orientation: <100>+/-0.5degree
Orientation: <110>+/-0.5degree
Orientation: <111>+/-0.5degree
Please send us your request with below details to " sales@mdlmaterials.com"
1. Size （Length / Width / Thickness)
2. Orientation
3. Polishing Side (SSP or DSP )
