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CY0027 Lithium Tantalate Wafers (LiTaO3 Wafers)

Catalog No. CY0027
Purity 99.9%
CAS Number 12031-66-2
Thickness 0.35-1mm
MSDS/SDS

Stanford Advanced Materials (SAM) is a trusted supplier and manufacturer of Lithium Tantalate Wafers. Various dimensions of Lithium Tantalate Wafers are available upon request.

Other Tantalum Compounds: Tantalum Oxide (Ta2O5), Tantalum Carbide Powder (TaC Powder), Tantalum Chloride

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Description
Specification
Technical Data Sheet

Lithium Tantalate Wafers Description

Lithium Tantalate (LiTaO3) Wafers are a type of single-crystal substrate used in electronics and optoelectronics applications. They are made of a compound consisting of lithium, tantalum, and oxygen atoms arranged in a crystal lattice structure.

LiTaO3 wafers exhibit piezoelectric and pyroelectric properties, making them useful in various devices such as surface acoustic wave (SAW) filters, sensors, actuators, and frequency control components. Their piezoelectric properties enable LiTaO3 wafers to convert mechanical vibrations into electrical signals or vice versa, while their pyroelectric properties allow them to generate an electrical voltage in response to temperature changes.

Lithium Tantalate Wafers are typically cut and polished into various sizes and orientations depending on the specific application requirements. They are available in different thicknesses and can be purchased as bare wafers or with specific thin film coatings applied on their surfaces.

Lithium Tantalate Wafers Lithium Tantalate Wafers Lithium Tantalate Wafer

Lithium Tantalate Wafers Specifications

Parameter Wafer (Boule)
Diameter (mm) 76.2 ± 0.3 100.0 ± 0.3
Axis Orientation X, Y, Z, 36°Y, 42°Y
Thickness (mm) 0.35-1mm
Ref. Flat Orientation X, Y, 112.2°Y
Ref. Flat Width (mm) 22.0 ± 2.0 32.0 ± 2.0
Front Side Polish +:Mirror Polished (Ra≤8Å)
Back Side Lapping (µm) 0.2-4µm
TTV (µm) ≤10 ≤10
PLTV (5×5mm; LTV < 1µm) ≥97% ≥95%
Bow (µm) ≤20 ≤35
Edge Bevel Edge Rounding
Poling Complete
Curie Temperature (°C) 605.0 ± 3.0°C

Lithium Tantalate Wafers Applications

• Used in interdigital transducers, EO, pyroelectric IR detectors, etc. 
• Used as a substrate material for RF surface acoustic wave (SAW) filters.
• Used in linear optics, motion detectors, and cell phones for their optical, piezoelectric, and pyroelectric properties.

Lithium Tantalate Wafers Packaging

Our lithium tantalate wafers are carefully handled to prevent damage during storage and transportation.

Lithium Tantalate Wafers FAQs

Q1 What are the common applications of LiTaO3 Wafers?

LiTaO3 Wafers are commonly used in:

  • Optoelectronics: Electro-optic modulators and waveguides
  • Acoustics: Surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices
  • Sensors: Temperature, pressure, and motion sensors
  • Telecommunications: High-frequency filters and resonators
  • Nonlinear optics: Frequency doubling and optical parametric oscillation

Q2 What are the surface finishes available for LiTaO3 Wafers?

Surface finishes for LiTaO3 Wafers include:

  • Single-sided or double-sided polishing
  • Ra (surface roughness) values as low as 5 Å for high-precision applications
  • Custom roughness levels based on application needs

Q3 Are LiTaO3 Wafers suitable for high-frequency applications?

Yes, LiTaO3 Wafers are widely used in high-frequency applications such as telecommunications filters and acoustic wave devices due to their excellent piezoelectric and electro-optic properties.

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