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SAW & Optical Grade Lithium Tantalate Wafers

Lithium tantalate (LiTaO3 or LT) crystals can be used to make surface acoustic wave devices, thermoelectric detectors and electro-optical modulators. Lithium tantalate and lithium niobate crystals are multifunctional crystal materials with piezoelectric, ferroelectric, pyroelectric, acousto-optic and electro-optic properties. They are widely used in surface sound wave (SAW) devices, optical communications, laser and electronics industry.


OST Photonics offer a variety of sizes and thicknesses of SAW&Optical grade Lithium Tantalate (LiTaO3 or LT) wafers, with wafer diameters ranging from 3 inch to 6 inch, the thickness can be customized according to your requirements (generally above 0.18 mm). The orientations can be X/Y/Z/Y36/Y42/Y48/X112 etc. Pyroelectric free black LiTaO3 wafers and Fe/Zn/MgO doped LiTaO3 wafers are also available. Contact OST Photonics to learn more about the price and cost of lithium tantalate wafers!


Types of SAW & Optical Grade Lithium Tantalate Wafers

What is the Pyroelectric Free Black Lithium Tantalate Wafers?


Pyroelectric free black lithium tantalate wafers were prepared successfully by chemical reduction under a mixed atmosphere of CO2 and H2. Bulk conductivity and optical transmittance of the black lithium tantalate wafers were measured, and the results showed that the pyroelectric effect for the reduced wafers was almost eliminated and the transmittance decreased considerably. The reduction process did not change Curie temperatures or piezoelectric properties of lithium tantalate wafers, while neutralizing electrical charges even if the electrical potential occurs instantaneously.


What are the Applications of Lithium Tantalate Wafers?


Lithium tantalate wafer is a kind of material with wide application prospects. It has excellent electrochemical performance and thermal stability, so it is widely used in the battery field in lithium-ion batteries, solid electrolytes, and other aspects. Lithium tantalate wafers can also be used as an important component in optical devices, such as tunable lasers, fiber optic communication devices, etc.


In addition to applications in the energy and optical fields, lithium tantalate wafers are also widely used in sensor technology. Due to its high sensitivity and fast response characteristics, it can be used to manufacture various types of sensing devices such as gas sensors, humidity sensors, and temperature sensors.


In addition, in the field of microelectronics, lithium tantalate wafers also play an important role. It can be used as a storage medium or a key element in non-volatile random access memory (NVRAM) and has high data read and write speeds and long-term data retention capabilities.


In short, lithium tantalate wafers, with their excellent physical and chemical properties, show great potential in many fields. In the future, with scientific and technological progress and process improvement, it is believed that this material will be more widely and deeply applied, and bring revolutionary changes to related industries.


Specification of the SAW & Optical Grade Lithium Tantalate Wafers


The specification of the lithium tantalate wafer refers to the specific requirements of the wafer in terms of size, shape, and performance. As an important functional material, lithium tantalate wafers are widely used in electronic devices, optical devices, and energy storage fields. 


First, regarding size specifications, parameters such as diameter, thickness, and flatness are included for lithium tantalate wafers. The diameter is typically determined by specific application needs and can range from a few millimeters to tens of millimeters. The thickness depends on the structural design and process requirements of the device being prepared. Flatness imposes strict surface quality requirements to ensure desired effects during subsequent processing stages. 


Secondly, concerning shape specifications, lithium tantalate wafers usually exhibit circular or other special shapes achieved through cutting or wafer technology while meeting accuracy and consistency requirements. 


Finally, performance specifications encompass various aspects including physical properties (e.g., density, hardness), chemical properties (e.g., stability and corrosion resistance), and electrical properties (e.g., dielectric constant conductivity). These parameters ensure product quality and reliability based on specific application needs.


SAW & Optical Grade Lithium Tantalate Wafers of OST Photonics



FAQS about SAW&Optical Grade Lithium Tantalate Wafers

What Is The Difference Between SAW Grade LiTaO3 and Optical Grade LiTaO3?

The difference lies in the raw material and the rate of growth. Optical grade LiTaO3 has a better raw material and a slower growth rate than SAW grade LiTaO3.

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Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
sales@ostphotonics.com; info@ostphotonics.com +86-0571-86780460