LiTaO₃ Wafer (Lithium Tantalate Substrate)
High-performance piezoelectric and electro-optic substrate for SAW devices, sensors, and photonic applications
Description
🔷 Overview
Lithium Tantalate (LiTaO₃) wafer is a multifunctional single crystal substrate widely used in acoustics, optics, and electronic applications.
With excellent piezoelectric, pyroelectric, and electro-optic properties, LiTaO₃ is an ideal material for surface acoustic wave (SAW) devices, sensors, and optical communication systems. It also offers high thermal stability and strong resistance to optical damage, making it suitable for high-frequency and high-power applications.
🔷 Key Features
- Excellent piezoelectric and electro-optic properties
- Strong pyroelectric response
- High thermal and chemical stability
- Wide optical transmission range (~0.4 – 5 µm)
- Suitable for high-frequency and high-power devices
- Good mechanical strength
🔷 Specifications
|
Material |
3″ 4″ 6″ Lithium Tantalate (LiTaO3) wafer for both Saw/Optical grade |
|
Orientation |
X112°/Y28°/Y36°/Y42°/YZ or Customized |
|
Surface finish |
single or double sides polish (DLP/SLP/ SSP/DSP all available) |
|
Thickness |
0.25/0.35/0.50/1.00+mm |
|
TTV |
< 1~5µm |
|
BOW |
± (25µm ~40um) |
|
Warp |
<= 35µm |
|
LTV (5mmx5mm) |
<1.5 um |
|
PLTV(<0.5um) |
≥98% (5mm*5mm) with 2mm edge excluded |
|
Curie Temp |
605°C±3°C |
|
Edge |
Comply with SEMI M1.2@with GC800#. regular at C typed |
|
Orientation flats |
available, per request |
|
Doped with |
Fe |
|
Polished side Ra |
Roughness Ra<=5A |
|
Back Side Criteria |
Roughness Ra:0.5-1.0µm GC#1000 |
|
Edge Rounding |
Compliant with SEMI M1.2 Standard/refer to IEC62276 |
|
Cracks, saw marks, stains |
None |
|
Single Domain |
Completed Polarization/Reducted |
🔷 Applications
- Surface Acoustic Wave (SAW) filters
- Bulk Acoustic Wave (BAW) devices
- Electro-optic modulators
- Infrared and pyroelectric sensors
- Optical communication systems
- Nonlinear optics and photonics
🔷 Why Choose LiTaO₃ Wafer
- Excellent for high-frequency signal processing
- Strong electro-optic and piezoelectric performance
- Reliable in harsh environments
- Widely used in telecommunications and sensing
🔷 Customization Options
- Crystal orientation (X / Y / Z / rotated cuts)
- Thickness & size
- Surface finish (SSP / DSP / optical grade)
- Research-grade / device-grade
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