Single Crystal CVD Diamond Seed Plates
Single crystal CVD diamond seed plates for homoepitaxial diamond growth, process development and advanced research applications.
Available in standard sizes from 3 × 3 mm to 20 × 20 mm, these seed substrates are designed for researchers, laboratories and commercial diamond growers requiring high-quality single crystal diamond material for CVD growth.
Standard products are supplied with {100} growth surfaces and are available with Side {100} or Side {110} orientation options. Unpolished, single-side polished and double-side polished finishes are available depending on process requirements.
Specifications
| Item | Description |
|---|---|
| Material | Single Crystal CVD Diamond |
| Product Type | Diamond Seed Plate |
| Growth Surface Orientation | {100} |
| Side Orientation | Side {100} or Side {110} |
| Standard Sizes | 3 × 3 mm to 20 × 20 mm |
| Thickness | 0.3 mm to 0.5 mm Standard |
| Surface Finish | Unpolished, Single-Side Polished or Double-Side Polished |
| Edge Condition | Laser Cut |
| Size Tolerance | ±0.1 mm |
| Thickness Tolerance | ±0.1 mm |
| Supply Mode | Stock Items and Custom Manufacturing |
Standard Size Range
| Size Range | Typical Thickness |
|---|---|
| 3 × 3 mm to 14 × 14 mm | 0.3 mm |
| 15 × 15 mm to 20 × 20 mm | 0.5 mm |
Additional dimensions and thicknesses can be manufactured upon request.
Why Use Single Crystal Diamond Seed Plates?
Single crystal CVD diamond growth requires a high-quality substrate with controlled crystal orientation and suitable surface preparation.
The seed plate acts as the foundation for subsequent diamond growth and directly influences crystal quality, growth uniformity and process stability.
For this reason, seed selection is often one of the most important factors in diamond growth research and production.
Surface Finish Options
| Surface Condition | Typical Application |
|---|---|
| Unpolished | Customer surface preparation, lapping or polishing |
| Single-Side Polished | Standard growth applications requiring one prepared growth surface |
| Double-Side Polished | Research, inspection or applications requiring improved surface quality on both sides |
The most suitable finish depends on growth method, pretreatment process and handling requirements.
Typical Applications
Single crystal diamond seed plates are widely used for:
CVD diamond growth
Diamond growth process development
Homoepitaxial diamond growth
Growth parameter optimization
Research laboratory projects
Pilot production and scale-up studies
Academic and industrial diamond research
Single crystal diamond substrate evaluation
Inspection and Quality Control
Available inspection information may include:
Dimensional measurements
Microscope images
Surface condition evaluation
Orientation verification
Lot-specific inspection records
Inspection scope may vary according to stock condition and customer requirements.
Custom Manufacturing
Custom seed plates can be supplied according to drawing or specification requirements.
Available options include:
Custom dimensions
Custom thickness
Orientation selection
Surface preparation
Special inspection requirements
Batch production
Ordering Information
For quotation, please provide dimensions, orientation, polishing requirements and quantity.
If growth performance is critical, please specify orientation tolerance, surface requirements and any inspection criteria required for your growth process.