Cleaning agent composition for a positive or a negative photoresist
View Patent ↗The present invention relates to a composition for cleaning a photoresist and is to provide a cleaning composition wherein the residue of the photoresist does not remain on the boundary surface between the cleaned area and the not-cleaned area after a negative photoresist containing pigment is cleaned, soft-baked, exposed and developed. The present invention provides a composition for cleaning a positive or negative photoresist which comprises (a) from 0.1 to 20 wt. % of and alkyl oxide polymer with a molecular weight of from 50 to 2000 and (b) from 80 to 99.9 wt. % of an organic solvent comprising: (b−1) from 1 to 20 parts by weight of dipropylene glycol methyl ether (DPGME), from 10 to 50 parts by weight of N-methyl pyrolidone (NMP) and from 50 to 90 parts by weight of methyl isobutyl ketone (MIBK), or (b−2) from 10 to 90 parts by weight of dimethyl formaldehyde (DMF) or dimethylacetamide (DMAc) and from 10 to 50 parts by weight of n-butyl acetate.
1. A composition for cleaning a positive or negative photoresist which comprises (a) from 0.1 to 20 wt. % of an alkyl oxide polymer with a molecular weight of from 50 to 2000; and (b) from 80 to 99.9 wt. % of an organic solvent containing from 1 to 20 parts by weight of dipropylene glycol alkyl ether (DPGAE), from 10 to 50 parts by weight of N-methyl pyrolidone (NMP) and from 50 to 90 parts by weight of methyl isobutyl ketone (MIBK).
2. The composition for cleaning a positive or negative photosensitive material of claim 1 , wherein the alkyl oxide polymer is ethylene oxide polymer.
3. The composition for cleaning a positive or negative photosensitive material of claim 1 , wherein the alkyl oxide polymer is propylene oxide polymer.
4. The composition for cleaning a positive or negative photosensitive material of claim 1 , wherein the dipropylene glycol alkylether is dipropylene glycol methyl ether.
5. A composition for cleaning a positive or negative photoresist which comprises (a) from 0.1 to 20 wt. % of an alkyl oxide polymer with a molecular weight of from 50 to 2000 ; and (b) from 80 to 99.9 wt. % of an organic solvent containing from 10 to 90 parts by weight of dimethyl formamide (DMF) ordimethylacetamide(DMAc) and from 10 to 50 parts by weight of n-butyl acetate.
6. The composition for cleaning a positive or negative photosensitive material of claim 5 , wherein the alkyl oxide polymer is ethylene oxide polymer.
7. The composition for cleaning a positive or negative photosensitive material of claim 5 , wherein the alkyl oxide polymer is propylene oxide polymer.
8. A process for cleaning a positive or negative photoresist which comprises,
a) forming a coating of the photoresist on a substrate; and,
b) removing the photoresist from peripheral area using the composition from claim 1 .
9. A process for cleaning a positive or negative photoresist which comprises,
a) forming a coating of the photoresist on a substrate; and,
b) removing the photoresist from peripheral area using the composition from claim 5 .