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The Application of a Polypyrrole Precoat for the Metallization of Printed Circuit Boards

  • Shimshon Gottesfeld
  • Francisco A. Uribe
  • Steven P. Armes

Abstract

We describe a printed circuit (PC) board metallization process starting with the formation of a precoat of polypyrrole (PPY) on the board followed by the direct electrodeposition of copper onto the polypyrrole-coated substrate. The polypyrrole film is applied to the insulating substrate by a single chemical polymerization step from an aqueous solution. The sheet resistivity of the polypyrrole precoat is typically of the order of a few hundred ohms/square, but this turns out to be a sufficiently low resistance to enable direct metal electrodeposition onto the PPY-coated substrate.

Keywords

Print Circuit Board Copper Deposit Peel Strength Sheet Resistivity Electroless Copper 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    R.V. Gregory, W.C. Kimbrell, and H.H. Kuhn, Synth. Met., 28, 823 (1989).CrossRefGoogle Scholar
  2. 2.
    H.H. Kuhn and W.C. Kimbrell, U.S. Patent 4,803,096.Google Scholar
  3. 3.
    Y.F. Nicolau, S. Davied, F. Genoud, M. Nechstein, and J.P. Travers, Synth. Met., 41-43, 1491 (1991).CrossRefGoogle Scholar
  4. 4.
    W.S. Huang, M. Angelopoulos, J.R. White, and J.M. Park, Mol. Cryst. Liq. Cryst., 189, 227 (1990).Google Scholar
  5. 5.
    J. Hupe and W. Kronenberg, Patent Application PCT Int. Appl. WO 89 08,375. Chem. Abstr. 113: 47204r.Google Scholar
  6. 6.
    Clyde F. Coombs editor “Printed Circuit Handbook”, section 2, McGraw-Hill, New York, 1988.Google Scholar
  7. 7.
    S. Machida, S. Miyata, and A. Techagumpuch, Synth. Met. 31, 311 (1989).CrossRefGoogle Scholar
  8. 8.
    K.L. Mittal editor, “Metallized Plastics 2: Fundamental and Applied Aspects”, Plenum Press, New York, 1991.Google Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Shimshon Gottesfeld
    • 1
  • Francisco A. Uribe
    • 1
  • Steven P. Armes
    • 1
  1. 1.Electronics Research GroupLos Alamos National LaboratoryLos AlamosUSA

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