Patent ID: 7381452

Claim:
A process for the deposition of amorphous hydrogenated carbon film comprising the steps of: promoting contact between a first electrode and a substrate on the surface of which said film will be deposited; providing vacuum corresponding to a maximum pressure of about 1×10 −1 Torr, in an environment containing said first electrode and a second carbonaceous electrode, providing a temperature to the first electrode ranging from about −20° C. to about 200° C.; providing a chemically active film precursor; providing a DC and/or radio discharge frequency ranging from about 0.01 watt/cm 2 to about 1 watt/cm 2 of surface of said second carbonaceous electrode between said first electrode and said second carbonaceous electrode, wherein said vacuum is sufficient to provide plasma generation between said first and second electrodes, and wherein the carbonaceous electrode is provided with a conformation of the article to be coated with the amorphous hydrogenated carbon film, the conformation being selected from a group consisting of: fully following the topography of an internal surface, partially following the topography of the internal surface, fully following the topography of an external surface, partially following the topography of the external surface, fully following the topography of the internal surface and fully following the topography of the external surface, fully following the topography of the internal surface and partially following the topography of the external surface, partially following the topography of the internal surface and fully following the topography of the external surface; and partially following the topography of the internal surface and partially following the topography of the external surface.