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Diamonds, the other way around!

CVD single crystal diamond Blancs – Mechanical grade

4p GeoA means (100) top and bottom face, (110) side faces.
Growth side: as-grown, nucleation side: laser-cut; 4° off-axis, with nitrogen

Our blancs are grown via heteroepitaxy: dislocation density (~10^7 cm-2), higher than for typical homoepitaxial seed substrate (10^5-10^6 cm-2); dislocation density doesn´t influence the optical properties of the grown diamonds but diamond growth is more complex due to easier build-up of stress at non-appropriate growth parameters; we grow exclusively on 4 inch wafer size on our Si/YSZ/Ir substrates. Experience of our long-term customers: they had to adapt their growth parameters with respect to “conventional” seeds; they are driven by the benefit of availability of larger area.

For detailed information about blancs click below.

Many thicknesses and dimensions are possible.
For questions please contact our sales department or write an e-mail
to sales@dd-technologies.com

For detailed information click below.