Sputtering apparatus for forming thin films

Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering

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Details

20419212, 20429819, C23C 1434

Patent

active

050857550

ABSTRACT:
An apparatus for forming a thin film of a given material on one or more substrates comprises a vacuum vessel, a first electrode which is provided in the vacuum vessel for holding a target plate of the given material thereon, a second electrode which is provided opposite to the first electrode in the vacuum vessel to form a discharge space between the first and second electrodes and holds the substrate(s) thereon, a gas conduit for supplying a sputtering gas into the discharge space, power sources for applying a discharge voltage between the first and second electrodes to generate a discharge plasma of the sputtering gas, and a magnetic field generating device which is provided to surround the discharge space and generates a magnetic field effective to prevent the discharge plasma from diffusing to the outside of the discharge space.

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patent: 4891560 (1990-01-01), Okumura et al.

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