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MgO Substrates

  • Twinless crystal structure, low dielectric constant (9.65), and miniature loss at microwave band
  • Maximum Size: 50x50x30mm
  • Stocked and custom MgO substrates available
  • Orientations:<100>,<110> and <111>
  • Surface Roughness: Ra < 0.5nm
  • Applications: Thin film growth of Ferro-magnetic, Photo-electronic, semiconductor, and high-temperature superconductor (HTSC) applications
Inquire for custom product  
Code Size Thickness Orientation Surface Finish Unit Price Delivery Cart
641-001 5x5mm 0.5mm <100> SSP Inquire 2 weeks
641-002 5x5mm 0.5mm <100> DSP Inquire 2 weeks
641-003 5x5mm 0.5mm <110> SSP Inquire 2 weeks
641-004 5x5mm 0.5mm <111> SSP Inquire 2 weeks
641-005 10x10mm 0.5mm <100> SSP Inquire 2 weeks
641-006 10x10mm 0.5mm <100> DSP Inquire 2 weeks
641-007 10x10mm 0.5mm <110> SSP Inquire 2 weeks
641-008 10x10mm 0.5mm <111> SSP Inquire 2 weeks
641-009 Φ12.7mm 0.5mm <100> SSP Inquire 2 weeks
641-010 Φ12.7mm 0.5mm <100> DSP Inquire 2 weeks
641-011 Φ25.4mm 0.5mm <100> SSP Inquire 2 weeks
641-012 Φ25.4mm 0.5mm <100> DSP Inquire 2 weeks
641-013 Φ50.8mm 0.5mm <100> SSP Inquire 2 weeks
641-014 Φ50.8mm 0.5mm <100> DSP Inquire Inquire

Due to its low dielectric constant and miniature loss at microwave band, and access to large-size MgO wafers, Single Crystal Magnesium Oxide (MgO) Wafers and Substrates have occupied substantial importance in the market of industrial HTS (High Temperature Superconductor) thin monocrystalline wafers for manufacturing high-temperature superconducting microwave filters and other devices required for mobile communication equipment. Other additional uses of MgO substrates include thin film growth of ferromagnetic, photoelectronic, and semiconductor. There is also an emerging interest in using MgO substrates for researching the epitaxial effects of substrates on the crystallization of polymers.

Hangzhou Shalom EO provides both stocked standard MgO wafers and custom MgO wafers.

Common Specifications:

Material MgO crystals Orientation <100>,<110>,<111>
Orientation Error ±0.5° Maximum Size 50x50mm
Typical Thickness 0.5mm, 1.0mm Thickness Tolerance ±0.05mm
Size Tolerance ±0.1mm Surface Finish SSP or DSP
Roughness Ra<0.5nm Cleanness and Package class 1000 clean room, class 100 bags

MgO Properties:

Growth Method Special Arc Melting Crystallographic Structure Cubic a = 4.13 Å
Twinning Structure Twin free Orientation <100>, <110>, <111>
Colour Colourless Transmission Range 0.2 to 8 µm
Density 3. 585 g/cm3 Melting Point 2780 +/- 20 °C
Thermal Expansion Coefficient 11.2 * 10-6 K-1 Dielectric Constant 9.65
Specific Resistivity > 1017Ohm/cm

Curves:

1)Typical X-Ray Diffraction (XRD) Curve of MgO <100> Crystals Substrates 




2) Typical Surface Roughness of MgO substrate <100> and <010> measured by Atomic Force Microscope (AFM) in 5μm x 5μm Scale







MgO Wafers 10x10x0.5mm <100> SSP

MgO Wafers 10x10x0.5mm <100> SSP

MgO Wafers 5x5x0.5mm <100> SSP

MgO Wafers 5x5x0.5mm <100> SSP

MgO Wafers Φ50.8mmx0.5mm <100> SSP

MgO Wafers Φ50.8mmx0.5mm <100> SSP