Method for suppressing growth of graphite and other non-diamond carbon species during formation of synthetic diamond
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United States of America Patent
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Jul 18, 1989
Grant Date -
N/A
app pub date -
Mar 30, 1987
filing date -
Mar 30, 1987
priority date (Note) -
Expired
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Abstract
Methods are provided for suppressing the growth of graphite and other non-diamond carbon species during the low pressure deposition of carbon to form diamond. In one method, the graphite or other non-diamond carbon species is vaporized using incident radiative energy sufficient to vaporize graphite but insufficient to damage the substrate. In another embodiment the graphite or other non-diamond carbon species is selectively photolyzed, such as, by use of laser energy of appropriate wavelength.
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