Single-Crystal Seed & Substrate Plates
Oriented single-crystal plates used as the substrate chip for homoepitaxial diamond growth.
A diamond seed is the substrate chip on which single-crystal diamond is synthesised: a single-crystal wafer of specific orientation and high integrity. During growth, carbon atoms use the seed's crystal structure as a blueprint, extending along the seed surface and matching its lattice.
Plates are supplied front (100), side (110), with an off-angle under 3 degrees, and free of polycrystalline regions, cracks and other defects.
- Excellent crystal quality, crack-free
- Precise crystal orientation control
- Flexible and customisable specifications
- Stable physical and chemical properties
Specifications
| Crystal orientation | Front (100), side (110) |
|---|---|
| Off-angle | < 3° |
| Raman shift | 1332.5 ± 0.5 cm⁻¹ |
| Raman FWHM | < 3 cm⁻¹ |
| Surface roughness Ra | < 1 µm |
| Appearance quality | Free of polycrystalline regions, cracks and other defects |
| Reference sizes | 24×19, 15×15, 10×10, 9×9, 8×8, 7×7 mm (customisable) |
| Thickness | 0.3 – 1.0 mm (customisable) |
Reference values from the producer datasheet. Dimensions marked customisable are set per order. Request a quote to have a specification confirmed against your drawing.
Applications
Seed and substrate plates are the starting point for everything grown homoepitaxially, and are used directly in several of the same end markets.
- Cutting and abrasive tools
- Semiconductors and electronic devices
- Optical and laser devices
- Quantum computing
- Single-crystal heat sinks
See all Substrates, Tooling & Electrodes or browse all products.