Diamond Materials Grade or surface option
High-Purity CVD Diamond
Choose it when specific unwanted impurities would upset your measurement.
Good to know
- “High purity” needs named impurities, limits and a characterization method.
- Low impurity content alone does not specify surface finish or crystal defects.
Specifications
What we define for high-purity CVD diamond, with units and how each is typically measured. We confirm values for your application in technical review.
Request the datasheetLook up a term in the glossaryDimensions & tolerances
| Parameter | Unit | Typical test method |
|---|---|---|
| Thickness and tolerance (bulk or layer) | mm | Micrometer or optical gauge |
| Lateral size, outline or diameter, and tolerance | mm | Optical measurement |
Crystal & purity
| Parameter | Unit | Typical test method |
|---|---|---|
| Nitrogen content and detection limit | ppb or ppm | FTIR spectroscopy or SIMS |
| Boron concentration and doping (layer or bulk) | cm⁻³ | SIMS or capacitance–voltage |
| Inclusions, growth sectors and defects | Cross-polarised microscopy or birefringence imaging | |
| Crystal type, grade and grain size | Raman spectroscopy or microscopy | |
| Face orientation, edge orientation and miscut | XRD or Laue diffraction | |
| Raman linewidth of the diamond line | cm⁻¹ | Raman spectroscopy |
| Crystalline quality (rocking-curve width) | arcsec | XRD rocking curve |
| Growth sectors and internal strain | Cross-polarised microscopy or birefringence imaging | |
| Colour-centre species and concentration | ppb | EPR or photoluminescence spectroscopy |
Surface & finish
| Parameter | Unit | Typical test method |
|---|---|---|
| Surface roughness per side | nm Ra | Profilometry or AFM |
| Surface finish condition (as-grown, lapped or polished) | Visual inspection to drawing |
Integration & packaging
| Parameter | Unit | Typical test method |
|---|---|---|
| Packaging, cleanliness and labelling | Per drawing | |
| Certificate of conformance and traceability | Supplier declaration |
Where it is used
Requirement to review
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