LGS Substrate
Gallium silicate lanthanum crystal (LGS) is a kind of multifunctional crystal with excellent performance. The dielectric, elastic and piezoelectric...
LGS Substrate
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 ...
- ManufacturerOST Photonics
- CategoryCrystal Wafer and Substrate
- Lead TimeQuoted per order
- CustomizationSize, orientation and surface finish to drawing
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.
Features
- Good thermal stability
- Low equivalent series resistance
- High electromechanical coupling coefficient (2~3 times of quartz)
Applications
- Surface acoustic wave (SAW) devices
- Bulk acoustic wave (BAW) devices
Processing Capability
- Orientation:<100>,<001>, etc.
- Dimension: 10x10mm, 15x15mm, 5x5mm, etc.
- Thickness: 0.5mm, 1.0mm, etc.
- Available items: substrates, blanks and customized optics
Specification and Properties of LGS Substrate
| 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 |
Other Crystal Wafer and Substrate Materials
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