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US 6,635,166 B2Granted
Composite plating method
AssigneeJapan Science and Technology Corporation
InventorsTetsuo Saji, Kumar Nabeen Shrestha
Life of this patent
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Abstract
Inorganic or organic fine particles which are insoluble to water are added to a metal plating bath, by dispersing the fine particles in a watery medium by the help of an azo-surfactant having an aromatic azo compound residue. Electrolysis is then carried out. According to the present invention, the content of the fine particles present in a composite plating film composed of the fine particles and a metal can be increased.
Claims4
A composite plating method, which comprises the steps of:
- adding inorganic or organic fine particles which are insoluble in water, to a metal plating bath, by dispersing the fine particles in an aqueous medium containing an ionic azo-surfactant having an aromatic azo compound residue;
- and effecting electrolysis, thereby forming a composite plating metal film composed of the fine particles and a metal.
Dependencies are inferred from the claim text.