Institute for Single Crystals
National Academy of Sciences of Ukraine
61001, Ukraine, Kharkiv, 60 Nauky Ave., phone/fax: +38(057)340-86-19, e-mail: info@iscrystals.com
We offer
Product innovation
Materials and Products - Large-Size Sapphire Crystals
 click picture to enlarge |
Sapphire Substrate BlanksSapphire substrate blanks for Micro- and Optoelectronics with diameter from 25 to 250 mm and thickness to 40 mm |
| Size, mm | Diameter 25...250, thickness to 40 |
| Accuracy of preparation, mm in diameter in thickness | ±0.05 ±0.05 |
| Blocks, twins, twin layers and cracks, inclusions that are visible in polarized light | Not allowed |
| Quality of the surfaces | Grinding finish |
| Roughness of the surfaces (Ra), Å | < 1 |
| Transmission (%): visible and IR spectral region (to 4,5 μm) UV spectral region (0,2 μm) | 85-87 70 |
| Internal voltages, kg/mm2 | ≤2 |
| Crystallographic orientation |  |
Our adress:
61001, Kharkov, 60 Lenin Ave.
phone: +38(057)340-86-19,
fax: +38(057)340-86-19,
e-mail: info@iscrystals.com
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