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Tantalum series

LiTaO3 Wafers

LiTaO3 and LiNbO3 are two kinds of typical multifunction crystal materials, and are widely used in surface acoustic wave filters, interdigital transducers, optical modulators, electro-optical switches, pyroelectric IR detectors, etc


Parameter Wafer(Boule)
Diameter (mm) 76.2±0.3 100.0±0.3 125.2±0.3
Axis Orientation X、Y、Z、36°Y、42°Y
Thickness(mm) 0.35-1mm
Ref. Flat Orientation X、Y、112.2°Y
Ref. Flat Width(mm) 22.0±2.0 32.0±2.0  
Front Side Polish +:Mirror Polished (Ra≤8Å)
Back Side Lapping(μm) 0.2-4μm  
TTV (μm) ≤10 ≤10  
PLTV(5×5mm;LTV<1μm) ≥97% ≥95%  
Bow(μm) ≤20 ≤35  
Edge Bevel Edge Rounding  
Poling Complete  
Curie Temperature(℃) 605.0±3.0℃  

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