Freestanding Ultra-Thin Lithium Tantalate (LiTaO₃) Wafer
A freestanding ultra-thin lithium tantalate (LiTaO₃) wafer is a self-supporting single-crystal LT wafer with no silicon, glass, oxide, or other handle substrate.
AMO Scientific offers ultra-thin LiTaO₃ wafers with thicknesses ranging from 20 to 60 µm, available in 3 inch and 4 inch diameters with X-cut or Z-cut crystal orientations.
The reduced thickness of the lithium tantalate crystal provides low thermal mass and makes these wafers especially suitable for high-sensitivity pyroelectric sensing applications.
Key Features
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Single-crystal lithium tantalate (LiTaO₃)
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Freestanding structure with no handle substrate
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Ultra-thin thickness: 20–60 µm
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3 inch and 4 inch wafer sizes
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X-cut and Z-cut orientations available
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Suitable for pyroelectric sensing applications
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Custom thickness and orientation options available
Applications
Ultra-thin lithium tantalate wafers are commonly used in:
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Pyroelectric infrared detectors
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Gas detection sensors
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Flame detectors
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Thermal sensing
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Infrared sensing systems
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Pyroelectric research
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MEMS sensor development
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Thin-crystal material research
Specifications
| Specification | Details |
|---|---|
| Material | Lithium Tantalate (LiTaO₃) |
| Structure | Freestanding single crystal |
| Diameter | 3 inch / 4 inch |
| Thickness | 20–60 µm |
| Crystal Orientation | X-cut / Z-cut |
| Handle Substrate | None |
| Primary Application | Pyroelectric sensing |
| Customization | Thickness and orientation available upon request |
What Is a Freestanding LiTaO₃ Wafer?
A freestanding LiTaO₃ wafer consists entirely of lithium tantalate and does not use a supporting silicon, oxide, glass, or other substrate. This distinguishes it from lithium tantalate-on-insulator structures.
The ultra-thin construction reduces thermal mass and can improve the responsiveness of pyroelectric detector elements.
Custom Ultra-Thin Lithium Tantalate Wafers
AMO Scientific can provide customized ultra-thin lithium tantalate wafers with different thicknesses, diameters, and crystal orientations.
Please contact us with your required wafer size, thickness, crystal cut, and application.