SrTiO3 Wafer



Semiconductor Wafer Inc. can provide both single crystal SrTiO3 wafer and conductive 
Nb doped SrTiO3 wafer with size from 5 x 5 mm to diameter 25 mm . With excellent physical and mechanical properties , SrTiO3 has twin free crystal structure and it's lattice contant can perfectly match to the common superconductor materials .

Pure SrTiO3 substrate is the best choice for your high Tc superconductor application ,
conductive SrTiO3 wafer can be as an electrode for certain thin film / device  applications , single crystal SrTiO3 can exhibit electric conductive by doping Nb ( Niobium ) , different doped concentration ( 0.1 ~ 1 wt% ) will change resistivity range from  0.001 to 0.1 ohm-cm , and this will be of benefit to some thin film application . 

Please contact us for more product information .
 


SrTiO3 Wafer Features
SrTiO3 Wafer Applications

Excellent lattice match to superconductor materials 
Superior mechanical properties
Stable dielectric constant  
Excellent piezoelectric characteristics


High Tc superconductor
Microwave filter
Thin film growth


Standard Single Crystal SrTiO3 Wafer  
Growth method
Flame fusion ( Verneuil ) method
Crystal structure
Cubic
Orientation
<100> , <110> , <111>
Dielectric constant
300
Lattice constant
3.905 A
Size
5 x 5 , 10 x 10 , 20 x 20 mm
Thickness
0.5 mm , 1 mm
Surface finish
one side polished
two sides polished
Surface roughness
< 10 A
Conductive Nb doped SrTiO3 Wafer
Single crystal SrTiO3 can exhibit electric conductive by doping Nb different doped concentration ( 0.1 ~ 1 wt% ) will change resistivity range from 0.001 to 0.1 ohm-cm , and this will be of benefit to some thin film growth application . 
Nb doped SrTiO3
Resistivity 
( ohm-cm )
Mobility 
( cm2 / v.s. )
Size available
( mm )
Concentration 
( 1.0 wt% )
0.0035
9.0
5 x 5 x 0.5
10 x 10 x 0.5
Concentration 
( 0.7 wt% )
0.007
8.5
5 x 5 x 0.5
10 x 10 x 0.5
Concentration 
( 0.4 wt% )
0.05
8.5
5 x 5 x 0.5
10 x 10 x 0.5
Concentration 
( 0.1 wt% )
0.08
6.5
5 x 5 x 0.5
10 x 10 x 0.5

 

         
         
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