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Product Details:
Payment & Shipping Terms:
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| Chemical Formula: | LiTaO₃ | Crystal Structure: | Trigonal |
|---|---|---|---|
| Density: | 7.45g/cm3 | Curie Temperature: | 603±2℃ |
| Hardness: | 5.5-6 Mohs | Melting Point: | 1650℃ |
| Thickness: | 0.25，0.35，0.50(mm) | Orientation: | Y42°/Y36°/X/Y/Z Or Upon Request |
| Surface Process: | Single/Double Sides Polishing | Roughness: | Ra≤10Å |
| High Light: | 4 Inches LiTaO3 Crystal,Black LiTaO3 Crystal,4 Inches Lithium Tantalate Crystal |
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Introduction:
Lithium Tantalate is a multi-functional material, which exhibits excellent electronic, electro-optical, pyroelectric, and piezoelectric properties, well-suited for SAW filters, optical communication, holographic, laser application. Polished LT wafer is widely used in electronic communication devices such as resonators, filters, and transducers, especially used surface acoustic wave devices for its good electromechanical coupling, and stable temperature Coefficient.
Main Advantages:
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Crystal Structure |
Trigonal |
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Lattice Constant |
a=5.154Å,c=13.783Å |
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Density |
7.45g/cm3 |
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Melting Point |
1650℃ |
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Curie Point |
603±2℃ |
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Mohs Hardness |
5.5-6 Mohs |
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Thermal Conductivity |
1015wm |
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Refractive Indices |
n0=2.176 ne=2.180 @ 633mn |
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E-O Coefficient |
R33=30.4 |
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Transmission Range |
400-5000nm |
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Pyroelectric Coefficient |
2.3×10-7 C/cm2/K |
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Electromechanical Coupling Factor |
R15≥0.3 |
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Thermal Expansion Coefficient |
a1=a2=1.61×10-6/℃, a3=4.1×10-6/℃ |
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Dielectric Constant |
es11/eo:39~43, es33/eo:42~43；et11/eo:51~54, et33/eo:43~46 |
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Size |
4" ,6" Boule or wafer,Acoustic or Optical grade |
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Doping |
No Doping or With Fe |
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Boule Length |
≥50mm |
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Wafer Thickness |
Thickness 0.25,0.35,0.50(mm) |
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Orientation |
Y42°/Y36°/X/Y/Z or Upon Request |
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Surface Process |
Single/Double Sides Polishing |
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TTV |
< 10µm |
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BOW |
± (25µm ~40um ) |
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Warp |
≤35µm |
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Flat Width |
32.0±2.0(mm) or Upon Request |
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Roughness |
Ra≤10Å |
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Chamfer |
≤0.1mm@45° |
Contact Person: Chen Dongdong
Tel: +86 18326013523
Fax: 86-551-63840588
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