Electroless metallization of dielectrics with alkaline stable pyrazine derivative containing catalysts

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United States of America Patent

PATENT NO 9918389
SERIAL NO

14477855

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Abstract

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Pyrazine derivatives which contain one or more electron donating groups on the ring are used as catalytic metal complexing agents in aqueous alkaline environments to catalyze electroless metal plating on metal clad and un-clad substrates. The catalysts are monomers and free of tin and antioxidants.

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Patent Owner(s)

Patent OwnerAddress
DUPONT ELECTRONIC MATERIALS INTERNATIONAL LLC455 FOREST STREET MARLBOROUGH MA 01752

International Classification(s)

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  • 2014 Application Filing Year
  • C23C Class
  • 2649 Applications Filed
  • 2034 Patents Issued To-Date
  • 76.79 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2014201520162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Feng Marlborough, US 583 7601
Rzeznik, Maria Marlborough, US 12 16

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  • 1 Citation Count
  • C23C Class
  • 32.86 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges533947902612535101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7081 - 900501001502002503003504004505005506006507007508008509009501000

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