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al2o3 substrate
al2o3 substrate
al2o3

Al2O3 Substrate

Sappire (as known as white sappire, molecular formula Al2O3) single crystal is an excellent multifunctional material. It has high temperature resistance, good thermal conductivity, high hardness, infrared transmission and good chemical stability. It is widely used in many fields of industry, national defense and scientific research (such as high-temperature infrared windows, etc.). At the same time, it is also a widely used single crystal substrate material, and it is the first choice for the blue, violet, and white light emitting diode (LED) and blue laser (LD) industries. And it is also an important superconducting film substrate. In addition to making Y-series, La-series and other high-temperature superconducting films, it can also be used to grow new practical MgB2 superconducting films.


OST Photonics offers high quality Al2O3 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.


Applications of Al2O3 Substrate


  • Infrared windows

  • LED lighting

  • Semiconductor device


Advantages of Al2O3 Substrate


  • High temperature resistance

  • Good thermal conductivity

  • High hardness

  • Good chemical stability


The Ability of Al2O3 Substrate


  • Orientation: A-plane<11-20>, R-plane<1-102>, M-plane<10-10>, C-plane<0001>, etc.

  • Dimension: 2”, 4”, 6”, 8”, 10x5mm, 10x10mm, 15x15mm, 20x15mm, 20x20mm, etc.

  • Thickness: 0.43mm, 0.5mm, 0.65mm, 1.0mm, etc.

  • Available items: wafers, substrates and customized products


Specification and Properties of Al2O3 Substrate


Crystal Structure

Hexagonal

Lattice Constant

a=4.748Å, c=12.97Å

Density

3.98 g/cm3

Melt Point

2040 ℃

Growth Method

Czochralski, Kyropoulos

Mohs Hardness

9 Mohs

Refractive Index (300K)

∥c, 1.762 @630nm

⊥c, 1.770 @630nm

Thermal Expansion

5.8 ×10-6/K

Thermal Conductivity (K/(°cm.s))

⊥c

//c


23℃, 0.055

26℃, 0.06


77℃, 0.040

70℃, 0.041

Loss Tangent at 293K

1×10^-4 (1MHz)

Dielectric Constant at 103-109Hz @25℃

∥c, 11.5

⊥c, 9.3

Transmittance

80%@ 400~4000nm

Orientation

A-plane

<11-20>

2.379 Å

R-plane

<1-102>

1.740 Å

M-plane

<10-10>

1.375 Å

C-plane

<0001>

2.165 Å

Orientation Tolerance

±0.5° or better

Dimensions

2”, 4”, 6”, 8”, 10x5mm, 10x10mm, 15x15mm, 20x15mm, 20x20mm, etc.

Dimension Tolerance

±0.1 mm or better

Thickness

0.43mm, 0.5mm, 0.65mm, 1.0mm, etc.

Thickness Tolerance

±0.05 mm or better

Surface Finish

Single side polished (SSP)/Double sides polished (DSP)

Surface Roughness

Ra<5Å (5×5μm)

Package

Class 100 clean bag, Class 1000 super clean room


Contact Us
Welcome your presence, you can send us an email, we will get in touch with you within 24 hours.
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
sales@ostphotonics.com; info@ostphotonics.com +86-0571-86780460