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 (εr): 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: ¼
Roughness of surface: Rmax £ 3nm (average Ra=1nm)
Scratches: none
Surface quality: with light microscope without defects