MgAl2O4 Substrate (Spinel)

Magnesium aluminate (MgAl2O4) can be used as the substrate substrate of III-V nitride device thin film, and is also widely used in acoustic wave and microwave devices and fast IC epitaxial substrates. In addition, it has a good lattice matching with epitaxial silicon thin layer. The self-doping of aluminum atoms in the epitaxial silicon thin layer is small, the thermal stability is good, and the expansion coefficient of silicon is relatively close, the hardness is small, the processing performance is better, etc., so it can be used as a high-quality insulating lining for ultra-high-speed large-scale integrated circuits One of the bottom materials.

OST Photonics offers high quality MgAl2O4 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.

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Features

    • Good thermal stability

    • High hardness

    • Good transmittance in UV, IR, and visible wavelengths

Applications

  • Acoustic wave device

  • Microwave devices

  • Fast IC epitaxial substrates

Processing Capability

  • Orientation:<100>,<110>,<111>, etc.

  • Dimension: 1”, 2”, 10x5mm, 10x10mm, 15x15mm, 20x15mm, 20x20mm, etc.

  • Thickness: 0.5mm, 1.0mm, etc.

  • Available items: wafers, substrates, blanks and customized optics

Specification and Properties of MgAl2O4 Substrate

Crystal Structure

Cube

Growth Method

Czochralski

Lattice Constant

a=8.085 Å

Melting Point

2130 ℃

Density

3.64 g/cm3

Hardness

8 Mohs

Color

White transparent

Thermal Expansion Coefficient

7.45×10^-6 /℃

Orientation

<100>,<110>,<111>, etc.

Orientation Tolerance

±0.5° or better

Dimension

1”, 2”, 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)

Surface Roughness

Ra≤5Å (5µmx5µm)

Package

Class 100 clean bag, Class 1000 super clean room