Materials properties | ||
---|---|---|
Structure formula: | MgO | |
State: | Monocrystalline | |
Crystal structure: | cCubic | |
Lattice parameter: | 4.213 Å | |
Density: | 3.58 g/cm3 | |
Melting point: | 2800°C | |
Thermal expansion coefficient: | 14.2 * 10-6/°C | |
Dielectrical constant (εr): | 10 |
Substrate properties | ||
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Orientation: | (100) | |
Orientation accuracy: | £ 0.5° | |
Standard size: | 10mm x 10mm x thickness 1mm or 0.5mm | |
Tolerance of length: | ± 0.10mm (typical better ± 0.05mm) | |
Tolerance of thickness: | ± 0.05mm | |
Parallelness: | £ 0.02mm | |
Polishing: | Standard: one side | |
Flatness: | ¼ | |
Roughness of surface: | Rmax £ 5nm (average Ra = 1nm) | |
Scratches: | none | |
Surface quality: | With light microscope without defects |