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Diamond-like carbon films from a hydrocarbon helium plasma

  • US 5,470,661 A
  • Filed: 01/07/1993
  • Issued: 11/28/1995
  • Est. Priority Date: 01/07/1993
  • Status: Expired due to Term
First Claim
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1. A coated substrate produced by depositing a diamond-like carbon film onto a substrate by plasma-enhanced chemical vapor deposition which comprises the steps of (a) admixing a hydrocarbon gas and helium to provide a gas mixture;

  • (b) providing a plasma chamber containing a substrate; and

    (c) introducing said gas mixture into said plasma chamber wherein a diamond-like carbon film is disposited on said substrate, said diamond-like carbon film having an optical density in the range from about 1 to about 3 at a wavelength of from about 200 nm to about 365 nm and is thermally stable at temperatures of about 590°

    C.

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