Gallium silicate lanthanum crystal (LGS) is a kind of multifunctional crystal with excellent performance. The dielectric, elastic and piezoelectric constants of LGS crystal are obviously higher than those of quartz, and the electromechanical coupling coefficient of LGS crystal is 2-3 times that of quartz, which can be used to manufacture surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices. OST Photonics ...
Gallium silicate lanthanum crystal (LGS) is a kind of multifunctional crystal with excellent performance. The dielectric, elastic and piezoelectric constants of LGS crystal are obviously higher than those of quartz, and the electromechanical coupling coefficient of LGS crystal is 2-3 times that of quartz, which can be used to manufacture surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices.
OST Photonics offers high quality LGS substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.
Good thermal stability
Low equivalent series resistance
High electromechanical coupling coefficient (2~3 times of quartz)
Surface acoustic wave (SAW) devices
Bulk acoustic wave (BAW) devices
Orientation:<100>,<001>, etc.
Dimension: 10x10mm, 15x15mm, 5x5mm, etc.
Thickness: 0.5mm, 1.0mm, etc.
Available items: substrates, blanks and customized optics
Crystal Structure | Trigonal |
Lattice Constant | a=8.170 Å c=5.099 Å |
Melting Point | 1470 ℃ |
Density | 5.75 g/cm3 |
Hardness | 5.5~6.5 Mohs |
Electromechanical Coupling Coefficient | 0.28~0.46 |
Growth Method | Czochralski |
Orientation | <100>,<001>, etc. |
Orientation tolerance | ±0.5° or better |
Dimension | 10x10mm, 15x15mm, 5x5mm, etc. |
Dimension Tolerance | ±0.1 mm or better |
Thickness | 0.5mm, 1.0mm, etc. |
Thickness Tolerance | ±0.05 mm or better |
Surface Finish | Single side polished (SSP)/Double sides polished (DSP) |
Roughness | Ra≤5Å |
Package | Class 100 clean bag, Class 1000 super clean room |
Send us your dimensions, orientation, surface finish and quantity. Our engineers reply with a technical proposal and price.
