Thin Film Substrate
Strontium titanate (SrTiO3)
Introduction: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, has no twin structure, and it has good physical and mechanical properties. SrTiO3 is also the preferred single crystal material for high temperature superconducting junction technology (using bicrystalline substrate or step-shaped substrate) and substrate stepwise (oblique cutting and heat treatment at specific angles).
|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 annealing)|
|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 the edge||2°（special in 1°）|
|Angle of crystalline||Special size and orientation are avaiable for request|
Package100 clean bag, 1000 exactly clean room
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