Photo-plating process
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorShinya Morishita
Life of this patent
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Abstract
A process for photo-plating only a light-irradiated portion of a dye layer formed on a substrate comprises: forming a dye layer on the surface of a substrate; immersing the substrate with the dye layer into an electroless plating solution comprising a sacrificial reagent for supplying electrons by irreversible oxidative decomposition, and at least one of copper ions, nickel ions, cobalt ions, and tin ions; and irradiating the surface of the dye layer with light having an energy higher than the excitation energy of the dye in the dye layer. A thick coating containing at least one of copper, nickel, cobalt, and tin can be formed with excellent adhesion strength only on the light-irradiated portion of the dye layer formed on the substrate.
Claims15
A process for photo-plating only a light-irradiated portion of a dye layer formed on a substrate, which comprises:
- forming a dye layer comprising dye molecules on the surface of a substrate;
- immersing the substrate with said dye layer into an electroless plating solution comprising a sacrificial reagent for supplying electrons by irreversible oxidative decomposition, and at least one member selected from the group consisting of copper ions, nickel ions, cobalt ions, and tin ions;
- and
- irradiating the surface of said dye layer with light having an energy higher than the exciting energy of the dye in the dye layer,
- thereby forming a coating containing at least one of copper, nickel, cobalt, and tin on the light-irradiated portion of the dye layer.
A process for photo-plating only a light-irradiated portion of a dye layer formed on a substrate, which comprises:
- forming a dye layer comprising dye molecules on the surface of a substrate;
- immersing the substrate with said dye layer into a solution comprising a sacrificial reagent for supplying electrons by irreversible oxidative decomposition, and ions of at least one noble metal;
- irradiating the surface of said dye layer on the substrate with light having an energy higher than the exciting energy of the dye in the dye layer;
- and
- immersing the substrate with said dye layer into an electroless plating solution comprising at least one member selected from the group consisting of copper ions, nickel ions, cobalt ions, and tin ions,
- thereby forming a coating containing at least one of copper, nickel, cobalt, and tin on the light-irradiated portion of the dye layer.
A process for photo-plating only a light-irradiated portion of a dye layer formed on a substrate, which comprises:
- forming a dye layer comprising dye molecules on the surface of a substrate;
- applying to said dye layer a solution comprising a sacrificial reagent for supplying electrons by irreversible oxidative decomposition, and at least one member selected from the group consisting of copper ions, nickel ions, cobalt ions, and tin ions;
- irradiating the surface of said dye layer with light having an energy higher than the exciting energy of the dye in the dye layer;
- and
- immersing the substrate with said dye layer into an electroless plating solution comprising at least one member selected from the group consisting of copper ions, nickel ions, cobalt ions, and tin ions,
- thereby forming a coating containing at least one of copper, nickel, cobalt, and tin on the light-irradiated portion of the dye layer.
A process for photo-plating only a light-irradiated portion of a dye layer formed on a substrate, which comprises:
- forming a dye layer comprising dye molecules on the surface of a substrate;
- applying to said dye layer a solution comprising a sacrificial reagent for supplying electrons by irreversible oxidative decomposition, and ions of at least one noble metal;
- irradiating the surface of said dye layer with light having an energy higher than the exciting energy of said dye in the dye layer;
- and
- immersing the substrate with said dye layer into an electroless plating solution comprising at least one member selected from the group consisting of copper ions, nickel ions, cobalt ions, and tin ions,
- thereby forming a coating containing at least one of copper, nickel, cobalt, and tin on the light-irradiated portion of the dye layer.
Dependencies are inferred from the claim text.