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EP0615256A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of manufacturing a pattern of an electrically conductive polymer on a substrate surface and method of metallizing such a pattern

Assignee: Koninklijke Philips NV
•
Filing: 1994-03-02
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Granted: —
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Expires: 2014-03-02
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Abstract

Abstract A solution of monomers, oligomers or polymers and a suitable oxidation agent can be stable if the solution also comprises a base. By spin coating this solution onto a substrate, a layer can be formed which, after patterned irradiation, yields a pattern of a doped conductive polymer which is formed in situ, the exposed and unexposed areas exhibiting a large difference in conductivity. A description is given of, inter alia, the patterned irradiation of a layer of 3,4-ethylenedioxythiophene. If desired, the conductive polymer pattern can subsequently be metallized in an electroplating bath. The method provides, inter alia, a simple process of manufacturing metal patterns on insulating substrates, such as printed circuit boards. <IMAGE>

Inventors

  • 👤 Cornelius Marcus J. Mutsaers
  • 👤 Dagobert M. De Leeuw
  • 👤 Maurice Maria J. Simenon

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 20:40
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/126; H01B1/127; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/188; H05K2201/00; H05K2201/03; H05K2201/032; H05K2201/0329

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 90 words
A method of manufacturing a pattern of an electrically conductive polymer on a substrate surface, a solution from which the conductive polymer is formed being provided on the substrate surface as a liquid layer, after which said liquid layer is optionally dried, exposed to patterned radiation and then heated, thereby forming the pattern of electrically conductive polymer, characterized in that the solution also comprises an oxidation agent and a base and in that conductive polymer is formed in the unexposed areas and non-conductive polymer is formed in the exposed areas.
Claim 2
Dependent Claim 23 words
A method as claimed in Claim 1, characterized in that poly-3,4-ethylenedioxythiophene is used as the polymer resulting from 3,4-ethylenedioxythiophene monomers in the solution.
Claim 3
Dependent Claim 20 words
A method as claimed in Claim 1 or 2, characterized in that an Fe(III)-salt is used as the oxidation agent.
Claim 4
Dependent Claim 19 words
A method as claimed in Claim 1, 2 or 3, characterized in that imidazole is used as the base.
Claim 5
Independent Claim 29 words
A method as claimed in any one of the preceding Claims, characterized in that an electroplating bath is used to provide a metal layer on the conductive polymer pattern.
Claim 6
Dependent Claim 21 words
A method as claimed in Claim 5, characterized in that copper, silver, nickel or chromium is used as the metal layer.

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