Dynamic multi-purpose composition for the removal of photoresists

Improved dry stripper solutions for removing one, two or more photoresist layers from substrates are provided. The stripper solutions comprise dimethyl sulfoxide, a quaternary ammonium hydroxide, and an alkanolamine, an optional secondary solvent and less than about 3 wt.% water and/or a dryness coe...

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Hauptverfasser: JOHNSON, LAURI RENEE, PHENIS, MICHAEL, T, POLLARD, KIMBERLY, DONA, CHAN, RAYMOND, SCHEELE, DIANE, MARIE, GOEBEL, GENE
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Improved dry stripper solutions for removing one, two or more photoresist layers from substrates are provided. The stripper solutions comprise dimethyl sulfoxide, a quaternary ammonium hydroxide, and an alkanolamine, an optional secondary solvent and less than about 3 wt.% water and/or a dryness coefficient of at least about 1. Methods for the preparation and use of the improved dry stripping solutions are additionally provided.