Lithium Gallate Crystal Substrate

• High-quality LiGaO₂ single-crystal substrate
• Suitable for semiconductor and epitaxial research
• Used as a substrate for GaN and III-nitride materials research
• Single-crystal structure with controlled crystallographic orientation
• Available with polished or double-side-polished surfaces
• Low surface roughness options may be available
• Suitable for thin-film and heteroepitaxial research
• Useful for optoelectronic and UV device research
• Custom substrate dimensions and orientations may be available
• COA and crystal-quality documentation available as applicable

Property	Typical Specification
Product Name	Lithium Gallate Crystal Substrate
Chemical Formula	LiGaO₂
Chemical Name	Lithium Gallium Oxide / Lithium Gallate
CAS Number	12057-38-8
Molecular Weight	~101.67 g/mol
Crystal Type	Single Crystal
Crystal Structure	Orthorhombic
Appearance	Transparent, translucent, or light-colored crystal depending on quality
Crystal Orientation	Common orientations such as (001), (010), (100), or custom
Substrate Size	Custom dimensions available
Thickness	Custom thickness available
Surface	Single-side polished (SSP) or double-side polished (DSP), as specified
Surface Roughness	Application dependent; low-roughness polished surfaces available
Crystallographic Quality	Single-crystal / epitaxial grade, specification dependent
Lattice Parameters	Approximately a = 5.40 Å, b = 6.37 Å, c = 5.01 Å
Thermal Properties	Grade and crystallographic direction dependent
Electrical Properties	Application and crystal-quality dependent
Packaging	Cleanroom-compatible packaging may be available
Documentation	COA, crystal orientation, and technical data as applicable

High-Purity LiGaO₂ Crystal Substrate

Designed for semiconductor and advanced-material research requiring controlled chemical purity and single-crystal quality.

Epitaxial-Grade Lithium Gallate Substrate

Prepared for thin-film and heteroepitaxial research where surface quality, crystallographic orientation, and low defect density are important.

Polished LiGaO₂ Substrate

Available with controlled surface finish for semiconductor processing and thin-film deposition.

Double-Side-Polished LiGaO₂ Substrate

DSP substrates may be available for applications requiring optical access or controlled processing on both surfaces.

Custom-Oriented LiGaO₂ Substrate

Custom crystal orientations, dimensions, thicknesses, and surface specifications may be available according to the requirements of the epitaxial process.

1. What is a lithium gallate crystal substrate?

Lithium gallate is a single-crystal LiGaO₂ material used as a substrate for semiconductor, optoelectronic, epitaxial-growth, and advanced materials research.

2. Why is LiGaO₂ used as a GaN substrate?

LiGaO₂ has crystallographic characteristics that make it attractive for GaN and III-nitride heteroepitaxy research. Its lattice relationship and surface orientation can support the study of high-quality nitride thin-film growth.

3. What orientations are available for LiGaO₂ substrates?

Common crystallographic orientations can include (001), (010), and (100), with additional orientations potentially available by request. The appropriate orientation depends on the intended epitaxial or device process.

4. Are LiGaO₂ substrates polished?

Yes. Lithium gallate substrates may be supplied with single-side-polished or double-side-polished surfaces, depending on the application and supplier capability.

5. Can custom LiGaO₂ crystal substrates be supplied?

Yes. Custom diameter or lateral dimensions, thickness, crystal orientation, polishing, surface roughness, and packaging may be available for research and semiconductor applications.

6. What documentation is available?

Depending on the substrate specification, documentation can include COA, crystal orientation, dimensions, thickness, surface specifications, and other crystal-quality information as applicable.