Patent ID: 6294479
Filing Date: 2001-09-25
Classification: C23C

Abstract:
A film forming apparatus comprising:means for continuously moving an objective substrate through a vacuum chamber;an evaporation source disposed at a first location for vacuum evaporation of a material onto a substrate surface as the objective substrate is moved through the vacuum chamber in a first direction;an ion source disposed at a second location for radiating ions having ion energy in a range of 500 eV to 8 KeV toward the substrate surface as the objective substrate is moved through the vacuum chamber in the first direction, said ion source being disposed so that the radiating ions form a mixed layer with the ration (M/N) of the number M of evaporation material atoms reaching the substrate surface per unit time and per unit area to the number N of ions reaching the substrate surface per unit time and per unit area being in a range from 10 to 1000;the ion and evaporation sources operating to produce a mixed layer on the substrate surface as the substrate is moved through the vacuum chamber in the first direction; andthe evaporation source operating to produce a film on the mixed layer on the substrate surface as the objective substrate is again moved through the vacuum chamber in the first direction or a second direction opposite to the first direction.