Lithium Tantalate (LiTaO₃) Crystal Substrates

Lithium tantalate substrates are available in a range of sizes (typically 2", 3", or 4" diameter), thicknesses, and surface finishes (single or double-side polished), with surface roughness and flatness controlled to meet demanding device fabrication standards.

Classification:

Product Series

E-mail:

monfils.chen@mtwkj.com

Contact

Message

introduce

Lithium tantalate (LiTaO₃) crystal substrates are widely used in the fields of optoelectronics, acoustoelectronics, and nonlinear optics due to their excellent piezoelectric, pyroelectric, and electro-optic properties. These single crystal substrates offer high optical transparency, stable physical and chemical properties, and excellent surface quality, making them essential materials for advanced device fabrication.

Key Features:
- Material: Single crystal lithium tantalate (LiTaO₃)
- Crystal Orientation: Common orientations include X-cut, Y-cut, Z-cut, and rotated Y-cut (e.g., 36° Y-cut, 128° Y-cut), tailored for specific acoustic or optical applications.
- High Curie Temperature: ~605°C, enabling stable performance in high-temperature environments.
- Excellent Piezoelectric Properties: Ideal for surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices.
- Good Electro-optic Coefficient: Enables modulation of light in integrated optical applications.
Applications:
- SAW filters and resonators for RF communication systems
- Infrared detectors and pyroelectric sensors
- Electro-optic modulators and Q-switches
- Nonlinear optical devices such as frequency doublers
- Integrated optics and photonic circuits
Advantages:
- High dielectric strength and thermal stability
- Low dielectric loss, supporting high-frequency applications
- High optical transparency from ultraviolet to infrared range
- Compatible with precision dicing, polishing, and bonding processes