MgO
Magnesium oxide (MgO) single crystal substrates are widely used in many thin film technology fields. Such as the production of magnetic films, semiconductor films, optical films and high-temperature superconducting films. Because the dielectric constant and loss of MgO single crystal in the microwave band are very small, and large-area substrates (2 inches in diameter and larger) can be obtained, it is an important high-temperature superconducting thin-film single crystal substrate for the current industrialization. one. It can be used to make high-temperature superconducting microwave filters and other devices required by mobile communication equipment, and has a large realistic and potential application market.
CasCrysTech(CCT) provise MgO substrate upon customer's request.
Uses/Applications
MgO are used in many thin film technology fields:
▪ Magnetic films
▪ Semiconductor films
▪ Optical films
▪ High-temperature superconducting films
Features/Benefits
The dielectric constant and loss of MgO single crystal in the microwave band are very small, and large-area substrates (2 inches in diameter and larger) can be obtained.
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Growth Method
Special Arc Melting
Crystal Structure
Cubic
Lattice Constant
a=4.130 Å
Melting Point
2800℃
Purity
99.95%
Density
3.58(g/cm3)
Mohs Hardness
5.5（mohs）
Thermal Expansion
11.2x10-6/K
Cleavage Plane
<100>
Transmittance
>90%（200~1000nm）
Dielectric Constants
ε= 9.65
Thermal Conductivity
36 W/mk @ 300°K
Dimension
5x5mm，10x10mm，20x20mm，30x30mm ,Ø50.8 mm
Thickness
0.5mm，1.0mm
Polishing
One side or two sides
Orientation
<001>,<110>,<111>
Crystal Plane Orientation Accuracy
±0.5°
Edge Orientation Accuracy
2°（Special requirements can reach within 1°）
Surface Roughness
Ra≤5Å（5×5µm））
Package
Class 100 clean bag, Class 1000 super clean room
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Dimension
5x5mm，10x10mm，20x20mm，30x30mm , Ø50.8 mm
Thickness
0.5mm，1.0mm