Strontium Titanium Substrate
Materials properties
| Structure formula: |
SrTiO3 |
| State: |
monocrystalline |
| Crystal structure: |
cubic |
| Lattice parameter: |
3.905 Å |
| Phase transition: |
tetragonal <110K |
| Density: |
5.12 g/cm3 |
| Melting point: |
2080°C |
| Coefficient of expansion: |
11.1 * 10-6/°C |
| Dielectrical constant (e): |
310 |
Substrate properties
| Production method: |
Verneuil grown (without twins) |
| 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: |
l /4 |
| Roughness of surface: |
Rmax£ 3nm (average Ra=1nm) |
| Scratches: |
none |
| Surface quality: |
with light microscope without defects |
Other sizes and specifications on request
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