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CVD ProductsCVD Products

CVD Diamond

Chemical Vapor Deposition (CVD) diamond is manufactured by means of a diamond synthesis technology in which a low pressure reactor is used to combine a thermal or plasma activating agent with a gas-phase carbon to produce a chemical reaction which results in polycrystalline diamond crystal growth or deposition upon a solid surface or substrate.

Although not a new concept (CVD diamond synthesis was first introduced by scientists over 50 years ago) it is only within the last decade that CVD diamond synthesis has shown its potential to become a commercially and economically viable alternative to natural diamond in the workplace, able to be grown in a controlled environment to desired thicknesses of up to ~2mm. CVD diamond wafers can also be cut into a variety of shapes and polished to achieve mirror-like finishes if required.

CVD Diamond Grades & Applications

  • Optical Grade CVD Diamond – High purity & transparency (transmission 65% @ 8-10µm).
    • IR (Infra-red) Windows

  • Thermal Grade CVD Diamond – High hardness & thermal conductivity (>12W/cmK).
    • Heat Spreader
    • IC (Integrated Circuit)
    • LD (Laser Diode)
    • LDA (Laser Diode Array) for thermal management

  • Mechanical Grade CVD Diamond – High hardness, good tensile strength & fracture toughness.
    • Dressing Tools – Single & multipoint dressers; grinding wheel dressers.
    • Cutting Tools - Surgical knives; cutting tool inserts; drill bits; reamers etc.
    • Wear Resistant Coatings – Non-ferrous, plastic and composite materials.
    • Wire Dies – Wire die blanks for hard metal wire e.g. tungsten, molybdenum & stainless steel.
PRODUCT DIMENSIONS APPLICATION
CVD Diamond Wafers Diameter: up to 120mm
Thickness: 0.3 – 2mm
Available polish: Single Side or Double Side
 
CVD Diamond Heat Spreaders Size: 10 x 10mm
Thickness: 0.2 – 0.8mm
Available polish: Single Side or Double Side
Cooling of High-Power Electronic Devices e.g. Laser Diodes.
CVD Diamond Bars Thickness x Width x Length
0.6mm x 0.6mm x 3-8mm
0.8mm x 0.8mm x 3-8mm
1mm x 1mm x 3-8mm
1.5mm x 2mm x 3-8mm
2mm x 2mm x 3-8mm
Dressing Tools
CVD Diamond Cubes Thickness x Width x Length
0.8mm x 0.8mm x 0.8mm
Dressing Tools
CVD Diamond Die Blanks Shape: Hexagon
Inner Diameter x Thickness (mm)
ADDMA Std. D6 2.5 x 1.0
ADDMA Std. D12 3.2 x 1.5
Wire Drawing
CVD Diamond Composite w/Tungsten Carbide Substrate Shape: Triangle
Overall Thickness: ~1.6mm
CVD Diamond Layer Thickness: 0.5 – 0.6mm
Angle x Side Length
90˚ x 4.5mm
80˚ x 4.5mm
70˚ x 4.5mm
35˚ x 4.5mm
Machining Non-ferrous Metals, Plastics and Composite Materials

 

DIDCO provides high quality CVD diamond in a variety of shapes, sizes & finishes. Request information.

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