Positive-tone photoimageable crosslinkable coating

Details Positive-tone photoimageable crosslinkable coating Positive-tone photoimageable crosslinkable coating

G - Physics

03

F

G03F 7/039 (2006.01) G03F 7/022 (2006.01) H05K 1/00 (2006.01) H05K 1/14 (2006.01) H05K 3/46 (2006.01) H05K 3/28 (2006.01)

Patent

CA 2243727

The imaged portion of a positive-tone photoimageable dielectric coating composition comprising a combination of a novolac resin and a naphthoquinonediazide is soluble in an aqueous alkaline developer and the developed coating is rendered highly stable, chemically and thermally, by the presence therein of a crosslinkable resin and dicyandiamide or a thermally labile halogen-containing as a curing catalyst while heating the coating to cure it.

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