Anodic oxidizer, anodic oxidation method

Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Utilizing electromagnetic wave energy during coating

Reexamination Certificate

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Details

C205S092000, C205S137000, C205S146000

Reexamination Certificate

active

07118663

ABSTRACT:
An anodic oxidation apparatus and an anodic oxidation method are provided that enable uniform photoirradiation of a treatment part of a target substrate, thereby realizing enhancement in uniformity of anodic oxidation in the surface of the target substrate. The anodic oxidation apparatus includes: a lamp that emits light; a target substrate holder provided at a position reached by the emitted light and capable of holding the target substrate; a cathode electrode that is provided on the way of the emitted light to reach the target substrate and that has an opening portion to allow light to pass therethrough and has a conductor section not transmitting light; and a vibrating mechanism to periodically vibrate a spatial position of one of the cathode electrode, the lamp, and the target substrate holder. While the positional relationship among the three of the lamp, the cathode electrode, and the target substrate holder holding the target substrate is roughly maintained, the spatial position of at least one of the three is periodically vibrated, thereby dispersing the shadow of the cathode electrode on the target substrate with time.

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