Description
Introduce
CaF2 single crystal provides a good lattice match to most materials with Perovskite structure and excellent Optical properties . It is an excellent substrate for epitaxial growth of HTS and many oxide thin films. CaF2 single crystal has also been used widely for special optical windows and as high quality sputtering target. RMJ has the full production line to manufacture first the high purity CaF2 powder, then the single crystal boules and finally the epi-polished substrates in many sizes. This allows us to provide CaF2 single crystal products with the highest quality and the lowest price to our customers all over the world.
Substrate Specifications
- Maximum Size: Diameter 4 inch, and other size call for me
- Orientation: (100) +/-0.5 Deg
- Edge orietation Indication: <001> +/-2 Deg avaiable as option.
- Polish: EPI polished by CMP tecnology with less sub-surface lattice damage.
- Surface finish (RMS or Ra): <5A
- Pack: Packed in 100 grade plastic bag under 1000 class clean room.
Typical Properties:
| Typical Physical Properties | |
| Crystal Structure | Cubic, a=5.462 Å |
| Growth Method | Bridgeman |
| Density | 3.18 g/cm3 |
| Melt Point | 1418 oC |
| Hardness | 4 ( Mohn) |
| Thermal expansion | 18.85 (x10-6/ oC) |
| Color and Appearance | Transparent (sometimes slightly brown based on annealing condition). No twins. |
| Chemical Stability | soluble in water |
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