Process for the photoselective metallization on non-conductive p

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device

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430323, 430325, 430326, 430330, 430331, 427 78, 427336, G03C 500

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active

045943117

ABSTRACT:
Catalytically imaged thermosetting and thermoplastic resin objects including printed circuit boards are provided. A hydrophilic, adhesion promoted insulating base material is treated in selected areas to produce metallic nuclei in the form of an image of a desired metal pattern. The image is exposed to an electroless metal bath to reinforce the image. Then, the non-imaged areas of the base are rendered hydrophobic by means of solvent treatment. The imaged areas are built up by metal deposition. Preferably, the solvent treatment of the non-imaged areas of the base material is repeated to enhance adhesion of the metal pattern to the base material.

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