Products
Lanthanum Aluminate Substrate
Sim. Verneuill grown
| Materials properties | ||
|---|---|---|
| Structure formula: | LaAlO3 | |
| State: | monocrystalline | |
| Crystal structure: | rhombohedrial cubic |
a = 5.377 Å a = 60.13° a = 3.821 Å |
| Phase transition: | > 500° C | |
| Density: | 6.51 g/cm3 | |
| Melting point: | 2180°C | |
| Coefficient of expansion: | 10 * 10-6/°C | |
| Dielectrical constant (εr): | 20-25 | |
| Substrate properties | ||
|---|---|---|
| Production method: | sim. Verneuill grown (with minimum 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: | ½ | |
| Roughness of surface: | Rmax £ 15nm (average Ra = 3nm) | |
| Scratches: | none | |
| Surface quality: | with light microscope without defects | |
Other sizes and specifications on request
