LaAlO3 Substrate
Lanthanum aluminate (LaAlO3) single crystal is currently the most important industrialized, large-size single crystal material for high-temperature...
LaAlO3 Substrate
Lanthanum aluminate (LaAlO3) single crystal is currently the most important industrialized, large-size single crystal material for high-temperature superconducting thin film substrates. It is grown by the Czochralski method, and single crystals and substrates with a diameter of 2 inches and larger can be obtained. It matches well with high-temperature superconducting materials and lattices such as YBaCuO, has low die...
- ManufacturerOST Photonics
- CategoryCrystal Wafer and Substrate
- Stock Items12 listed specifications
- Lead TimeQuoted per order
- CustomizationSize, orientation and surface finish to drawing
Lanthanum aluminate (LaAlO3) single crystal is currently the most important industrialized, large-size single crystal material for high-temperature superconducting thin film substrates. It is grown by the Czochralski method, and single crystals and substrates with a diameter of 2 inches and larger can be obtained. It matches well with high-temperature superconducting materials and lattices such as YBaCuO, has low dielectric constant and low microwave loss, so it is suitable for making high-temperature superconducting microwave electronic devices (such as high-temperature superconducting microwave filters in telecommunication). There are huge reality and potential application prospects.
OST Photonics offers high quality LaAlO3 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.
Features
Good lattice match to most materials with Perovskite structure
Low dielectric constant
Low microwave loss
Applications
- High-temperature superconducting microwave filters in telecommunication
- Advantages
- Good lattice matching with YBaCuO
- Low dielectric constant
- Low microwave loss
Processing Capability
- Orientation:<100>,<110>,<111>, etc.
- Dimension: 1”, 2”, 2.6”, 10x5mm, 10x10mm, 15x15mm, 20x15mm, 20x20mm, etc.
- Thickness: 0.5mm, 1.0mm, etc.
- Available items: wafers, substrates, blanks and customized optics
Specification and Properties of LaAlO3 Substrate
| Crystal Structure | M6 (normal temperature) | M3 (>435℃) |
| Lattice Constant | M6 a=5.357A c=13.22 Å | M3 a=3.821 Å |
| Melting Point | 2080 ℃ | |
| Density | 6.52 g/cm3 | |
| Hardness | 6-6.5 Mohs | |
| Thermal Expansion Coefficient | 9.4×10-6 /℃ | |
| Dielectric Constants | ε=21 | |
| Secant Loss (10ghz) | ~3×10-4@300K, ~0.6×10-4@77K | |
| Color and appearance | Tan to Brown based on annealing conditionVisible twins on the polished substrate | |
| Chemical Stability | Insoluble in mineral acids at 25 ℃ and soluble in H3PO3 at >150 ℃ | |
| Growth Method | Czochralski | |
| Orientation | <100>,<110>,<111>, etc. | |
| Orientation Tolerance | ±0.5° or better | |
| Dimension | 1”, 2”, 2.6”, 10x5mm, 10x10mm, 15x15mm, 20x15mm, 20x20mm, 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 |
Available LaAlO3 Substrate Items
The following specifications are listed on our original catalogue. Custom dimensions, orientations and surface finishes are produced to your drawing.
| 5 mm x 5 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (100), Double Sides Polished (50 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (100), Single Side Polished (50 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (110), Double Sides Polished (50 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (110), Single Side Polished (50 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (111), Double Sides Polished (50 Pieces) | View |
| 5 mm x 5 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (111), Single Side Polished (50 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (100), Double Sides Polished (20 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (100), Single Side Polished (20 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (110), Double Sides Polished (20 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (110), Single Side Polished (20 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (111), Double Sides Polished (20 Pieces) | View |
| 10 mm x 10 mm x 0.5 mm LaAlO3 Single Crystal Substrates, Orientation: (111), Single Side Polished (20 Pieces) | View |
Other Crystal Wafer and Substrate Materials
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