LSAT (Lanthanum Strontium Aluminum Tantalum oxide) is a newly developed multi-functional substrate by Physcience. It is grown by Czockralski method and possible to get large size and good quality by accurate controlling of the temperature distribution and growth rate. LSAT has less structure defect, no domain, no twin structure. It also has low dielectric loss in microwave band.
Crystal Specifications:
| Approximately
Molecular Form |
(La0.3Sr0.7)(Al0.65Ta0.35)O3 |
|
Crystal Structure |
Cubic
m3m Mixed peroviskite |
|
Cell parameter |
a=7.737Å |
|
Dieletric constant |
about 22 |
| Density |
6.64g/cm3 |
| Meltking point |
2113°K |
| Secific Heat |
0.57J/g∙k(295°K) |
| Thermal conductivity |
5.1W/m∙k |
| Thermal expansion(10-6k-1) |
8.2(295°K)
11(973°K) |
| Hardness (Mohs) |
6.5 |
| Growth Method |
Czokralski |
| Color |
Light yellow |
Standard Size: Ф2″,Ф1″, 20x20,10x10,10x5, 10x3mm…or customer design
Thickness: 0.5mm, 1.0mm.
Thickness tolerance: ±0.02mm or ±0.005mm for special order
Polish: one or two sides
Orientation: <100> <110> <111>
Orientation accuracy: ±0.5°
Edge Orientation accuracy: 2°(or 1°for special order)
Cut with special tilt angle : available(tilt angle:1°－45°)
Micro roughness Ra: ≤5Å(5μm×5μm)
