Aluminium Oxide (Al₂O₃) alumina substrate

Fe:SrTiO3 Substrate

The Iron-doped Strontium Titanate (Fe:SrTiO₃) substrate is created by doping small quantities of iron into the SrTiO₃ crystal lattice. This material is suitable for use in semiconductor and photo-optic applications.

For inquiry, please give us the following information:

  1. Size with tolerance  (Diameter / Thickness )
  2. Type 
  3. Orientation 
  4. Doping Concentration
  5. Polishing Side (SSP or DSP )
  6. Quantity

Typical Properties

Crystal Structure Cubic a=3.905Å
Doping Concentration Fe 0.05% wt
Fe 0.005% wt
Growth Method Verneuil
Density 5.175 g/cm3
Melt Point 2080 °C
Hardness 6 (Mohn)
Thermal Expansion 10.4 x (10-6/°C)
Dielectric Constant ～300
Loss Tangent at 10 GHz ～5 x 10-4@300K , ～3 x 10-4@77K
Color and Appearance
  • Transparent (Sometime slightly brown based on annealing condition)
  • No twins
Chemical Stability Insoluble in water
Orientation <100>+/-0.5degree
<110>+/-0.5degree
<111>+/-0.5degree

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