Photoimageable dielectric material for circuit protection

This invention relates to an electronic circuit device comprising a photoimageable covercoat comprising an epoxy-modified aromatic vinyl-conjugated diene block copolymer An electronic circuit device comprising at least one substrate having a photoimageable covercoat, comprising at least 95 weight pe...

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Bibliographic Details
Main Authors Imken, Ronald L, Clough, Robert S
Format Patent
LanguageEnglish
Published 03.12.2002
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Summary:This invention relates to an electronic circuit device comprising a photoimageable covercoat comprising an epoxy-modified aromatic vinyl-conjugated diene block copolymer An electronic circuit device comprising at least one substrate having a photoimageable covercoat, comprising at least 95 weight percent of at least one epoxy-modified aromatic vinyl-conjugated diene block copolymer and a catalyst comprising an onium salt selected from a triarylsulfonium salt and a diaryliodonium salt, wherein the covercoat is formed by solvent coating or extrusion and then heat laminated onto at least a portion of the substrate.