US Patent 8475924 Compositions and methods for creating electronic circuitry
Patent 8475924 was granted and assigned to E.I. Du Pont De Nemours And Company on July, 2013 by the United States Patent and Trademark Office.
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The present invention is directed to non-lithographic patterning by laser (or similar-type energy beam) ablation, where the ablation system ultimately results in circuitry features that are relative free from debris induced over-plating defects (debris relating to the ablation process) and fully additive plating induced over-plating defects. Compositions of the invention include a circuit board precursor having an insulating substrate and a cover layer. The insulating substrate is made from a dielectric material and also a metal oxide activatable filler. The cover layer can be sacrificial or non-sacrificial and is used to remediate unwanted debris arising from the ablation process.
US Patent 08475924 Compositions and methods for creating electronic circuitry US Patent 8475924 Compositions and methods for creating electronic circuitry
US Patent 08475924 Compositions and methods for creating electronic circuitry
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