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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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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Current Assignee
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E.I. Du Pont De Nemours And Company
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
84759241
Patent Inventor Names
Yueh-Ling Lee1
Shane Fang1
Date of Patent
July 2, 2013
1
Patent Application Number
121692121
Date Filed
July 8, 2008
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Patent Citations Received
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US Patent 12136762 Polymer composition for use in an antenna system
2
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US Patent 11705641 Antenna system including a polymer composition having a low dissipation factor
3
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US Patent 11917753 Circuit board for use at 5G frequencies
4
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US Patent 11912817 Polymer composition for laser direct structuring
5
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US Patent 12107617 RF filter for use at 5G frequencies
6
Patent Primary Examiner
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Callie Shosho
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Patent abstract

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.

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