Strontium Titanate Substrate (SrTiO3)
Strontium Titanate Substrate
Strontium titanate (SrTiO3) is one of the most widely used high temperature superconducting single crystal substrate. It matches well with the lattice of high-temperature superconducting materials such as YBaCuO, which has no twin structure. It has good physical and mechanical properties. SrTiO3 is also the preferred single crystal material for high-temperature superconducting junction technology (using bi-crystalline substrate or step-shaped substrate) and substrate stepwise (oblique cutting and heat treatment at specific angles).
Strontium Titanate Substrate Physical Properties
| Material | SrTiO3 |
|---|---|
| Structure | Cubic |
| Lattice (A) | a=3.905 |
| Growth Method | Vernuil |
| Hardness | 6 (Mohns) |
| Melting Point | 2080℃ |
| Density(g/cm3) | 5.175 g/cm3 |
| Thermal Expansion | 9.4 (x 10-6/℃) |
| Permittivity | ε = 300 |
| Loss Tangent | ~ 5 × 10 - 4 (300k) ~ 3 × 10 - 4 (77k) |
| Chemical Stability | Insoluble in water |
| Color and Appearance | Transparent (sometimes slightly brown depending on the annealing) |
Strontium Titanate Substrate Specifications
| Size | 10x3, 10x5, 10x10, 15x15, 20x20,Dia 2''x 0.33 mm, Dia 2'' x 0.43 mm |
|---|---|
| Thickness | 0.5 mm, 1.0 mm |
| Polished | SSP or DSP |
| Orientation | <100>, <110>, <111> |
| Redirection Precision | ±0.5° |
| Redirection the Edge | 2°（special in 1°） |
| Angle of Crystalline | Special size and orientation are available on demand |
Strontium Titanate Substrate Package
Packaged with class 100 clean bag or wafer container in a class 1000 clean room.
Related Products of Strontium Titanate Substrate
|
Magnetic Ferroelectricity Substrates |
Semiconductor Wafers |
|
|
GaN Thin Film Substrates |
Halide Substrates |
Ceramic Substrates |
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