Lithium Tantalate Wafer LT
LiTaO₃ Usually Colorless/Pale Yellow,Trigonal Distorted-Perovskite Structure,Excellent Electro-Optic,Piezoelectric/Pyroelectric Properties.
Specification Snapshot
Diameter [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)]
2 inch - 50.8mm
Diameter [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)]
3 inch - 76.2mm
Diameter [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)]
4 inch - 100mm
Diameter [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)]
6 inch - 150mm
Thickness [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); Diameter: 2 Inch - 50.8mm]
250μm
Thickness [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); Diameter: 3 Inch - 76.2mm]
350μm
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Overview
LiTaO₃ Usually Colorless/Pale Yellow,Trigonal Distorted-Perovskite Structure,Excellent Electro-Optic,Piezoelectric/Pyroelectric Properties.
Specifications
| Parameter | Value |
|---|---|
| Diameter [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 2 inch - 50.8mm |
| Diameter [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 3 inch - 76.2mm |
| Diameter [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 4 inch - 100mm |
| Diameter [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 6 inch - 150mm |
| Crystal Axis Direction [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | Y-36° / Y-42° / Y-128° / X-cut / Z-cut |
| Thickness [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); Diameter: 2 Inch - 50.8mm] | 250μm |
| Thickness [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); Diameter: 3 Inch - 76.2mm] | 350μm |
| Thickness [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); Diameter: 4 Inch - 100mm] | 500μm |
| Thickness [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); Diameter: 6 Inch - 150mm] | 1000μm |
| Blackening Status [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | White or Black |
| Front-Surface Condition [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | Epi-polished,Ra<0.5nm |
| Back-Surface Condition [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | SSP:Fine-ground,Ra<1.0um(GC#1000); DSP:Epi-polished,Ra<0.5nm |
| Curie Temperature [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); DTA] | 603°C±2°C (DTA) |
| Total Thickness Variation (TTV) [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | ≤10μm |
| Bow (BOW) [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | ≤25μm |
| Edge Exclusion [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | ≤3 mm |
| Crystal Structure [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | Trigonal Crystal System |
| Density [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 4.612 g/cm³ |
| Lattice Constant [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | a = 0.514829, c = 1.38631 |
| Cleavage Plane [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | (01T2) |
| Melting Point [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 1260 °C |
| Pyroelectric Coefficient [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | -4 × 10⁻⁶ |
| Optical Transparency Range [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 400 ~ 5000 nm |
| Refractive Index [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); @632.8nm] | n₁ = 2.286, n₂ = 2.220 |
| Electro-Optic Coefficient [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | r₁₁ = 9.69, r₃₃ = 30.90 |
| Nonlinear Optical Coefficient [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); @852 nm] | d₃₁ = 33 (@852 nm) |
| Thermal Expansion Coefficient [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches); @25°C] | α₁ = 15.4, α₃ = 7.5 (@25°C) |
| Mohs Hardness [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 5 |
| Relative Permittivity [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | ε11 = 85.2, ε33 = 28.7 |
| Specific Heat [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 0.76 Cal/cm³ |
| Thermal Conductivity [Lithium Tantalate Single-Crystal Substrate LiTaO3/LT (2~6 Inches)] | 0.029 W/cm·K |
Applications
Optical Switches/Modulators;SAW Filters/Resonators;Pyroelectric IR Detectors;Laser Technology;Pressure/Temperature Sensors
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Supplier Information
Jiangyin Jingmu Optoelectronic New Materials Co., Ltd. is a technology-oriented enterprise dedicated to semiconductor wafer material processing and epitaxial technology. With a decade of focus on semiconductor substrates, including SiC, sapphire, silicon, and third/fourth-generation materials like diamond, GaN, Ga2O3, AlN, it also provides optical wafers and carrier products. Equipped with advanced processing technologies such as cutting, grinding, polishing, laser processing, epitaxial coating, and wafer bonding, it collaborates with universities for R&D, offering customized solutions. Products are widely used in LED, power devices, RF, and optical communication.
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