mechanical grade
ultra-hardness, wear resistance and corrosion resistance, diamond is the core consumable of the processing tools for sawing, cutting, grinding and drilling. Diamond is widely used in the tools for various precision machining and the surface of the drill in geological exploration fields. Large size, high quality single crystal CVD diamond can be used in brain/heart surgery scalpel, optical lens cutting and other high-end expansion fields, CMP process of semiconductor industry.
| hardness | 10400kg/mm2 |
| Yang’s modulus | 1100-1300GPa |
| Roughness (both sides) | ˂30nm, polished |
| Face orientation | 100 |
| Edge orientation | 110 |
Thermal grade
With low coefficient of thermal expansion and the highest thermal
conductivity, CVD can be used in the third generation
semiconductor high power devices, high power lasers and
microelectronic thermal sink devices,
Synchrotrons and X ray free electron laser beamlines heat
disspiation with special bondingcentralized heat dissipation of large
areas, such as TR components, microwave power components point
heat dissipation for thermal emission units, such as Gallium
nitride(GaN) devices
We can also provide customer solution for different material
bonding.
| Size | Single crystalline < Φ 30mm Polycrystalline < Φ 90mm |
| Roughness growing side | ˂30nm polish |
| Thermal conductivity | 1200-2300W/mK |
| Thermal expension | 293K 0.8×10-6
/K 400-1200K (1.5-4.8) x10-6 /K |
| Isobaric molar heat capacity | 1800K 24.7J/mol.K 3000K 26.3J/mol.K |
Optical grade
optical grade single crystal CVD diamond can be widely used in aviation, military, scientific research equipment, such as electron-Synchrotron equipment, CO2 laser window (10.6μm), Raman Laser, high power microwave window, etc.
| Size | Single crystalline ˂ Φ 50mm |
| Thickness | Single crtystalline 0.01mm-3mm |
| Roughness (both sides) | ˂10nm (in 1mm2) * 2nm as request |
| Thermal conductivity | ˃ 1900W/mK |
| Transmission rate (thickness 1mm) | 1064nm ˃68%, 8-25µm ˃ 70% |
| Refractive rate | 104nm 2.392, 600nm 2.415 |
Electronic grade
Electronic grade diamond is used in various high-tech and industrial applications due to its exceptional material properties, which include high thermal conductivity, low electrical conductivity, and low chemical impurities.
In electronics industry, it serve as reliable heat spreaders and sinks in high-power electronic components, ensuring efficient heat dissipation and enhancing device performance. It is also be used in quantum computing and sensing, X-ray and Radiation Detection
| Size | typical 5x5mm, 4x4mm |
| Thickness | 0.05-0.5mm |
| Roughness (both sides) | ˂10nm (in 1mm2) |
| Thermal conductivity | ˃ 2000W/mK |
| Nitrogen concentration | ˂20ppb |
| Lattice | 100, 110, 111 |
| Band gap width(ev) | 5.47 |
| Resistivity(Ω·cm) | ＞1010 |
| Dielectric constant | 5.5 |