LiAlO2
LiAlO2 (Lithium Aluminate) crystal is the most important substrate for the high-temperature superconducting thin film. It matches very well with high temperatures superconducting materials such as YBaCuO and has the characteristics of low dielectric constant and low microwave loss. LiAlO2 is a potential substrate for III-V nitride thin films due to its excellent lattice mismatch to GaN, chemical stability at high temperature and cost effective than ZnO. LiAlO2 crystal can replace ZnO and sapphire as optical substrate. Lithium Aluminate (LiAlO2 ) single crystal has a lower lattice mismatch with GaN crystal to be an excellent substrate for GaN film.
使用/应用
LiAlO2 (Lithium Aluminate) crystal is the most important substrate for the high-temperature superconducting thin film.
Can be used as substrate for III-V nitride thin films
LiAlO2 crystal can replace ZnO and sapphire as optical substrate.
特点/优势
It matches very well with high temperatures superconducting materials such as YBaCuO and has the characteristics of low dielectric constant and low microwave loss.
Chemical stability at high temperature and cost effective than ZnO.
Lithium Aluminate (LiAlO2 ) single crystal has a lower lattice mismatch with GaN crystal to be an excellent substrate for GaN film.
-
Crystal Structure
Tetragonal
Lattice Constant
a=5.17 A c=6.26 A
Melting Point
1900℃
Density
2.62（g/cm3）
Mohs Hardness
7.5（mohs）
Mismatch Rate with GaN<001>
1.4%
Dimension
10x3mm，10x5mm，10x10mm，15x15mm，20x15mm，20x20mm
Ф15,Ф20，Ф1″，Ф2″,Ф2.6″
Thickness
0.5mm，1.0mm
Polishing
One side or two sides
Orientation
＜100＞ ＜001>
Crystal Plane Orientation Accuracy
±0.5°
Edge Orientation Accuracy
2°（Special requirements can reach within 1°）
Bevel Wafer
According to specific requirements, wafers with edge-oriented crystal planes inclined at a specific angle (inclination angle 1°-45°) can be processed.
Surface Roughness
Ra≤5Å（5×5µm）
Package
Class 100 clean bag, Class 1000 super clean room
-
Dimension
10x3mm，10x5mm，10x10mm，15x15mm，20x15mm，20x20mm
Ф15,Ф20，Ф1″，Ф2″,Ф2.6″
Thickness
0.5mm，1.0mm