CVD Diamond Wafers and Lenses

CVD Diamond has been recognized an ideal material for various applications because of its outstanding properties which includes extreme hardness and strength, high thermal conductivity, low thermal expansion, excellent dielectric properties, resistance to chemical attack, and optical transmission over a wide spectral range. It can be widely used in complex tooling and machining processes, thermal-management applications, semiconductor industry and microwave engineering.

Thermal-Management Solutions
Polycrystalline CVD diamond is suitable for a variety of high-performance temperature-management applications. Specifications for thermal conductivity range up to 2000 W/m-K. At present, CVD diamond is used as mounts for high-power integrated circuits, laser diodes, GaN on Diamond (GOD) and heat spreaders for satellite based electronic systems.

Thermal Grade:
Standard Medium: ＞1200W/m.k
High: ＞1500W/m.k
Excellent:＞1800W/m.k (up to 2000W/m.k)
Tolerance of Thickness: ±25um
Flatness:<4um/cm
Density: 3.5g/cm3
Young’s modulus: 1000-1100GPa
Growth side surface finish:<100 nm Ra
Nucleation side surface finish:<30 nm Ra
Standard Sizes
Double sides polished : Up to diameter 150 mm
As grown thickness: Between 0.3 mm and 1.5 mm
Polished thickness: Between 0.2 mm and 1.0 mm

Microwave-Transparent Windows and Optics
We supply high-quality diamond optical products that are transparent in the microwave region with a wide range of size and thickness. With our cutting-edge laser technologies, we can customize the optical windows in any shape and dimension according to client’s requirement.

Specifications:
Diameter of 65mm (F150mm on request)
Double side surface roughness: Ra 10nm
Flatness: 4um/cm
With higher transparency
Thickness less than 0.5mm
Can be laser cut to any size and shapes