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MgOmoq :
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Magnesium oxide (MgO) substrate (single crystal) is widely used in many film technical fields. As for the production of magnetic film semiconductor film, optical film and the high-temperature superconducting films. It is currently an important industrial temperature superconducting thin films of single-crystal substrates.
Key Features:
MgO single crystal as the dielectric constant and loss microwave band is very small, and can obtain a large area substrate (diameter of 2 inches and larger), it is currently an important industrial HTS thin monocrystalline substrate world.
The main purpose:
For the production of magnetic thin film, a semiconductor film, optical film and the high-temperature superconducting thin film, can also be used for mobile communication equipment for making superconducting devices such as microwave filters.
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The main performance parameters |
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Growth method
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Arc melting
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Crystal structure
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Cubic
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Lattice constant
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a = 4.216 Å
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Melting point (℃)
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2800
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Purity
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99.99%
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Density (g / cm 3)
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3.58
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Mohs Hardness
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5.5
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Coefficient of thermal expansion (/ ℃)
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11.2x10 -6
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Cleavage plane
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<100>
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Optical transmission
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> 90% (200 ~ 400nm),> 98% (500 ~ 1000nm)
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Permittivity
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ε = 9.65
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Thermal conductivity (cal / cm sec degree)
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0.14 300 ° K
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Other direction of substrate
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We can customize specific orientation upon requirements
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Package
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Class-100 clean bag, class-1000 clean room
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| Standard Specification | |||||
| Product Name | Orientation | Standard Size | Thickness | Polishing | |
| MgO substrate |
<100> ± 0.5° <110> ± 0.5° <111> ± 0.5° Or other off-angle |
10x10mm 10x5mm 5x5mm 25x25mm 15x15mm φ1" x 0.5mm φ2" x 0.5mm Or others |
0.1mm 0.2mm 0.5mm 1.0mm 2.0mm Or others |
Fine ground Single side polished Double side polished Roughness: Ra<5A(0.5nm) |
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