The diameter of our CVD diamond wafer can measure up to 70mm,the thickness canbe 0.3mm – 2.5mm. The CVD diamond wafers also can be cut into different geometrical shapes, and according to the customers' requirment we can do the polish work to achieve mirror-like finishes on single side or double sides.
The performance parameters of CVD diamond we manufacture being close to the natural diamond Ⅱa.
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Hardness
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Tensile strength
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Compressive strength
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Friction factor
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8000~10000Kg/mm2
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272 Kg/mm2
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9.8×1013 Kg/mm2
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0.05~1
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Young’s modulus
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Poisson’s ratio
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Density
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Thermal shock factor
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1.05GPa
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0.22
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3.51g/cm3
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107W/m
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Coefficient of thermal conductivity
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Thermal expansion coefficient
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Resistivity
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Relative permittivity
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8~20W/(cm·K)
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2.3×10-6/℃
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~106Ω·m
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5.7
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Electron mobility
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Hole mobility
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Electron drift velocity
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bandgap engergy
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2200cm2/V·S
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1800 cm2/V·S
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2.5×107cm/s
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5.45ev
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