Electroless plating method and apparatus
AssigneesPioneer Electronic Corporation, Pioneer Video Corporation
InventorsOsamu Kumasaka, Nobuki Yamaoka
Life of this patent
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Abstract
A method and implementing apparatus for electroless plating an optical disk causes the disk to be positioned in a container with its main surface upturned and then rotated. As the disk rotates, liquid for treating or cleaning the disk is caused to fall on the upturned main surface from a position above the disk.
Claims5
An electroless plating method for plating a disk, comprising the steps of rotating said disk to be plated with its main surface upturned, causing a plating-pretreating solution to fall onto said main surface from above said main surface so as to bring said plating-pretreating solution into contact with said main surface, causing a cleaning solution to fall from above said main surface onto said main surface to thereby clean said main surface, causing a plating solution to fall from above said main surface onto said main surface to bring said plating solution into contact with said main surface, and causing a cleaning solution to fall from above said main surface onto said main surface to thereby clean said main surface.
An electroless plating appratus for plating a disk, comprising:
- a turntable for carrying said disk thereon;
- an open-headed and close-bottomed cylindrical container for surrounding said turntable;
- and
- a liquid supply means for separately causing a cleaning solution and a treating solution individually to fall toward said turntable through the open head of said cylindrical container.
Dependencies are inferred from the claim text.