| 摘要 |
An apparatus for forming thin film includes a vacuum container to which an active gas, an inert gas, or a mixture thereof is introduced, a source of evaporation for evaporating a substance being evaporated in the vacuum container, a counter electrode disposed in the vacuum container and holding a substrate for forming a thin film thereon in such a manner as to be opposed to the source of evaporation, a grid disposed between the source of evaporation and the counter electrode and having openings which allow the substance being evaporated to pass therethrough, a filament for thermionic emission disposed between the grid and the source of evaporation and a power source device for establishing a predetermined electric potential relationship between the grid, the counter electrode, and the filament.
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