Patent ID: 6294227
Filing Date: 2001-09-25
Classification: C23C,H01J

Abstract:
A method of forming a protective film on a plastic car part comprising the steps of:providing a plasma chemical vapor deposition apparatus in which a shape of at least one part of a cathode provided in a reaction chamber includes a plurality of non-planar surfaces which coincide with a shape of at least one part of the plastic car part that includes a plurality of non-planar surfaces;attaching said plastic car part to said cathode in a condition that said plurality of nonplanar surfaces of the cathode contacts said plurality of non-planar surfaces of the plastic car part so that the parts coincident in shape contact with each other; andperforming plasma chemical vapor deposition by supplying high-frequency electric power between said reaction chamber and said cathode while importing a hydrogen gas and an organic silicon gas into said reaction chamber,wherein said organic silicon gas includes hexamethyldisilane, andwherein said plastic car part is a lens for a vehicle lamp.