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 condition Visible 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

Standard Specifications

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

LaAlO3 Substrate

Features

Applications

Processing Capability

Specification and Properties of LaAlO3 Substrate

Available LaAlO3 Substrate Items

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