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EP0373438A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Photoresist film with a soluble intermediate layer

Assignee: BASF SE
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Filing: 1989-12-01
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Granted: —
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Expires: 2009-12-01
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Abstract

Abstract Translated from German Die Erfindung betrifft Photoresistfilme mit löslicher Zwischenschicht. The invention relates to photoresist films with a soluble intermediate layer. Diese bestehen im wesentlichen aus (i) einer Trägerfolie, (ii) einer darauf aufgebrachten Zwischenschicht und (iii) einer auf der Zwischenschicht aufgebrachten photoempfindlichen Schicht und gegebenenfalls (iv) einer Deckfolie wobei die Zwischenschicht (ii) aus einem modifizierten Vinylalkoholpolymer besteht.These essentially consist of (i) a carrier film, (ii) an intermediate layer thereon and (iii) a photosensitive layer applied to the intermediate layer and if necessary (iv) a cover sheet wherein the intermediate layer (ii) consists of a modified vinyl alcohol polymer. Die erfindungsgemäßen Photoresistfilme eignen sich insbesondere für die Herstellung gedruckter Schaltungen. The photoresist films according to the invention are particularly suitable for the production of printed circuits.

Inventors

  • 👤 Friedrich Dr. Seitz
  • 👤 Wolfgang Huemmer
  • 👤 Manfred Zuerger

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 22:52
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/09; G03F7/11; H; H05; H05K; H05K3/00; H05K3/0073; H05K3/02; H05K3/06; H05K3/061; H05K3/064

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