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GGG Substrates and Wafers

      • Maximum diameter: 4 inches
      • Custom wafers available upon request
      Inquire for custom product  
      Code Size Thickness Orientation Surface Finish Unit Price Delivery Cart
      6506-001 5x5mm 0.5mm <100> SSP Inquire 2 weeks
      6506-002 5x5mm 0.5mm <110> SSP Inquire 2 weeks
      6506-003 5x5mm 0.5mm <111> SSP Inquire 2 weeks
      6506-004 10x10mm 0.5mm <100> SSP Inquire 2 weeks
      6506-005 10x10mm 0.5mm <110> SSP Inquire 2 weeks
      6506-006 10x10mm 0.5mm <111> SSP Inquire 2 weeks
      6506-007 Φ12.7mm 0.5mm <111> SSP Inquire 2 weeks
      6506-008 Φ12.7mm 0.5mm <111> DSP Inquire 2 weeks
      6506-009 Φ25.4mm 0.5mm <111> SSP Inquire 2 weeks
      6506-010 φ25.4mm 0.5mm <111> DSP Inquire 2 weeks
      6506-011 φ50.8mm 0.5mm <111> SSP Inquire 2 weeks
      6506-012 φ50.8mm 0.5mm <111> DSP Inquire 2 weeks
      6506-013 φ76.2mm 0.5mm <111> SSP Inquire Inquire
      6506-014 φ76.2mm 0.5mm <111> DSP Inquire Inquire
      • Fine mechanical, optical and chemical properties
      • Excellent as optical, microwave isolator and HTS substrates

      Gadolinium Gallium Garnet (GGG) single crystal is material with good optical, mechanical and thermal properties which make it promising for use in fabrication of various optical components as well as substrate material for magneto - optical films and high - temperature superconductors. It can be used for infrared optical isolator (1.3 and 1.5 um), which is made of YIG or BIG film on the Gadolinium Gallium Garnet (GGG) substrate plus birefringence parts. GGG crystal is an important substrate for microwave isolators and can be used as a HTS material, for laser technology, telecommunications, electronic. 

      Hangzhou Shalom EO provides not only the stocked standard epi-ready GGG wafers, but also the custom type wafers upon request.

      Common Specifications:

      Material GGG single crystals Orientation <100>,<110>,<111>
      Orientation Error ±0.5° Maximum Diameters 4 inches
      Typical Thickness 0.5mm,1.0mm Size Tolerance ±0.05mm
      Size Tolerance ±0.1mm Surface Finish SSP or DSP
      Roughness Ra<0.5nm Cleaness and Package 1000 grade clean room, 100 grade bags

      Physical Properties:

      Density, g/cm3 (20°C) 7.08 Type of Materials Single crystal
      Crystal Structure cubic Lattice Parameter, A 12.383
      Melting Point (°C) 1750 Thermal Conductivity, W x cm-1 x °K-1 7.05
      Thermal Expansion, 1/°C 8.2x10-6 Dielectric Constant 30
      Dielectric Loss Tangent, at 10GHz 0.15 Mohs Hardness 7.5

      1) X-ray Diffraction (XRD) Rocking Curve for GGG Crystals Substrates at <111> Orientation


      2) Surface Roughness of GGG Polished Surface Measured by Atomic Force Microscope (AFM) , Ra=1.4 Angstrom




      GGG Wafers φ12.7x0.5mm <111> DSP

      GGG Wafers φ12.7x0.5mm <111> DSP

      GGG Wafers φ76.2x0.5mm <111> DSP

      GGG Wafers φ76.2x0.5mm <111> DSP

      GGG Wafers 5x5x0.5mm <110> SSP

      GGG Wafers 5x5x0.5mm <110> SSP