Photoresist stripping compositions

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...

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510414, 510407, 430331, C11D 318, C11D 320, C11D 1831, C11D 183

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active

057286647

ABSTRACT:
A non-aqueous negative photoresist stripping composition which consists essentially of about 40 to 80% by weight of an alkylnaphthalene solvent, about 5 to 20% by weight of an alkyl phenol which provides a corrosion inhibitory effect, about 5 to 20% by weight of a linear monoalkylbenzene sulfonic acid which is a surfactant and about 1 to 10% by weight of a dialkylbenzene sulfonic acid. There is further provided a process for removing coatings from a photoresist with the compositions of the invention.

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patent: 4992108 (1991-02-01), Ward et al.
patent: 5472631 (1995-12-01), Harris
patent: 5650261 (1997-07-01), Winkle

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