4-inch Diameter 1mm SGGG Wafer - Substituted Gadolinium Gallium Garnet Substrate with 12.497Å Lattice Constant
Price:
Negotiable
MOQ:
1pc
Delivery Time:
4-5weeks
Brand:
Crystro
Product Description
Product Overview
4-inch diameter 1mm thick SGGG (Substituted Gadolinium Gallium Garnet) wafer designed as premium substrates for liquid epitaxy applications. These single crystal substrates feature precisely controlled lattice parameters and high-quality surface polish finishing for optimal epitaxial growth performance.
Technical Specifications
| Parameter | Value |
|---|---|
| Chemical Formula | Substituted GGG |
| Lattice Constant | 12.497Å |
| Growth Method | Czochralski |
| Mohs Hardness | 7.5 |
| Melting Point | 1730°C |
| Purity | > 99.99% |
| Density | 7.09 g/cm³ |
| Surface Roughness | Optically polished side up |
| Polish | Single or double side polish |
| Orientation | <111>+0.2° |
| Refractive Index | 1.954 at 1064nm |
Available Specifications
- Standard orientations: <100>, <110>, <111> (Tolerance: ±2 degrees)
- Standard sizes: 10×10×1.0mm, 20×20×1.0mm, 3" diameter × 0.5mm, 4" diameter × 0.5mm
- Custom orientation and size options available
Applications
SGGG wafers serve as dedicated substrates for magneto-optical films in optical communication equipment. They enable successful epitaxial growth of YIG and BIG films for 1.3 and 1.5 micron optical isolators, providing excellent lattice matching and superior physical, mechanical, and chemical stability.
Material Comparison
| Property | GGG | SGGG |
|---|---|---|
| Chemical Formula | Gd₃Ga₅O₁₂ | Substituted GGG |
| Lattice Constant | 12.383Å | 12.497Å |
| Density | 7.13 g/cm³ | 7.09 g/cm³ |
| Mohs Hardness | 8 | 7.5 |
| Melting Point | 1725°C | 1730°C |
| Refractive Index | 1.954 at 1064nm | 1.954 at 1064nm |
Packaging & Storage
- Standard packaging: 1000 clean room, 100 clean bag or single box packaging
- Storage instructions: Vacuum storage recommended due to oxidation sensitivity; use within one month
Manufacturing Advantages
- Direct factory production with full equipment from cutting to coating
- Professional R&D team with over 20 years of experience
- SGS certified quality management system
- Strict quality control and comprehensive after-sales support
- Flexible production capacity to meet custom requirements
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
ANHUI CRYSTRO CRYSTAL MATERIALS Co., Ltd.
Location
No. 176, Yuner Rd, Yunhai Rd Industrial Park, Baohe District，Hefei City，Anhui Province
Contact Person
Wu