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GGG Substrates and Wafers

  • Exceptional magneto-optical properties, low dielectric loss and high thermal conduction
  • Maximum diameter: 4 inches; typical thickness 0.5/1.0mm
  • Clean package: class 1000 clean room and class 100 bags
  • Typical Orientation of GGG substrates: <100>, <110> and <111>
  • Excellent as magneto-optical isolator, microwave epitaxial substrates, and HTS substrates
  • Applications: magneto-optical films (such as YIG or BIG thin film) growth, excellent as optical, microwave isolator and High-Temperature Superconductor (HTS) substrates
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

Gadolinium Gallium Garnet (GGG) single crystal is a material with exceptional magneto-optical properties, low dielectric loss, and high thermal conduction which make it promising for use in the fabrication of various optical magneto-optical components as well as for epitaxial growth of microwave elements and high-temperature superconductors. GGG substrates can be incorporated into infrared optical isolator (operating from 1.3μm to 1.5μm), which comprises YIG or BIG film deposited on the Gadolinium Gallium Garnet (GGG) substrate combined with birefringence parts. GGG substrates enable the fabrication of high-performance optoelectronic devices such as lasers, light-emitting diodes (LEDs), and photodetectors.

Hangzhou Shalom EO provides standard epi-ready GGG substrates and wafers, custom GGG wafers are also available upon request.

Common Specifications:

Material GGG single crystals Orientation <100>,<110>,<111>
Orientation Error ±0.5° Maximum Diameter 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 Cleanness and Package  class1000 clean room, class 100 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

Curves:

1)Typical X-Ray Diffraction (XRD) Curve of GGG Crystals Substrates and Wafers




2) Typical Surface Roughness of GGG substrate <111> measured by Atomic Force Microscope (AFM) in 5μm x 5μm Scale









GGG Wafers φ12.7x0.5mm <111> DSP

GGG Wafers φ12.7x0.5mm <111> DSP

GGG Wafers 5x5x0.5mm <111> SSP

GGG Wafers 5x5x0.5mm <111> SSP

GGG Wafers 10x10x0.5mm <100> SSP

GGG Wafers 10x10x0.5mm <100> SSP