- Material: Mono-crystalline Al2O3
- Growth Method: KY
- Purity: >99.99%
- Orientation: C-axis (0001) to M (1-100) 0.2° ± 0.1°
- Dimension: Diameter 50.8 mm
- Dimension Tolerance: +/-0.1 mm
- Thickness: 0.43 mm
- Thickness Tolerance: +/-0.025 mm
- Primary Flat Orientation: A-plane (11-20) ± 0.3°
- Primary Flat Length: 16 ± 1 mm
- Polishing: Single Side Polished
- Front Side: Epi-ready, Ra<0.3 nm
- Back Side: Fine ground, Ra<1.2 um
- TTV: <10 um
- BOW: -10～0 um
- WARP: <10 um
- Packing: Class 100 Clean room cleaning and vacuum nitrogen packaging
Al2O3 Single Crystal Description
Al2O3 crystal or Sapphire is a multi-function crystal materials with excellent properties: good thermos-stability, high thermal conductivity, high hardness, high transmission at infrared wavelength rang and excellent chemical stability. Sapphire is widely used in industrial, defense and security and scientific research fields. sapphire is also an important substrate materials for high temperature superconductivity applications, it can be used for film growth of Y-series, La-series, and it is also used to grow the superconductivity film of MgB2.
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