Description of Lithium Aluminate Crystal Substrates
LaAlO2 Single Crystal is currently the most important industrialized, large-scale high-temperature superconducting thin film substrate single crystal material. Single crystals and substrates with a diameter of 2 inches or more can be obtained by a pull-up method. It matches very well with high temperatures superconducting materials such as YBaCuO and lattice and has the characteristics of low dielectric constant and low microwave loss. Therefore, it is suitable for high-temperature superconducting microwave electronic equipment (such as high-temperature superconducting microwave filters in telecommunications).

Specifications of Lithium Aluminate Crystal Substrates
Major Capability Parameter
|
Crystal Structure
|
Tetragonal system
|
Lattice Constant
|
a=5.17 A c=6.26 A
|
Melt Point(°C)
|
1900
|
Density
|
2.62(g/cm3)
|
Hardness
|
7.5 (mohs)
|
Standard Size (mm)
|
10x3,10x5,10x10,15x15,20x15,20x20 mm
|
Ф20mm, Ф1″, Ф2″
|
Thickness
|
0.5mm,1.0mm
|
Polishing
|
Single or double side polished
|
Crystal Orientation
|
<100>, <001>, <110>
|
Orientation Accuracy
|
±0.5°
|
Edge Orientation Accuracy
|
2° (special in 1°)
|
Other Angle of Crystal
|
Special size and orientation are available upon request
|
Roughness (Ra)
|
≤5Å(5µm×5µm)
|
Applications of Lithium Aluminate Crystal Substrates
Lithium Aluminate Crystal Substrates are suitable for high-temperature superconducting microwave electronic equipment (such as high-temperature superconducting microwave filters in telecommunications).
Package of Lithium Aluminate (LiAlO2) Crystal Substrates
Lithium Aluminate (LiAlO2) Crystal Substrates are meticulously packaged with anti-static protective layers, moisture-resistant sealing, and shock-absorbing materials to ensure safe transit and storage. Each package includes detailed labeling and documentation to meet international shipping standards.
FAQs
Q1 What makes LiAlO₂ substrates suitable for GaN growth?
LiAlO₂ substrates have a close lattice match with GaN, making them an excellent choice for the epitaxial growth of GaN-based devices like LEDs and power electronics.
Q2 Can LiAlO₂ substrates withstand high temperatures?
Yes, Lithium Aluminate substrates are highly resistant to thermal stress and can be used in high-temperature environments, making them suitable for advanced electronics and laser systems.
Q3. Are LiAlO₂ substrates transparent?
LiAlO₂ is partially transparent in certain wavelength ranges, making it suitable for optical and photonic applications where transparency is a requirement.