摘要 |
<p>An alkaline aqueous developing solution for developing photoresists or the like contains, as an anti-scum agent, an ethoxylated surfactant having the general formula: R-ÄO-(CH2-CH2-0)nÜm-X where R is a hydrophobic group, X is H or an anionic group, m is from 1 to 3, and n is at least 15, preferably at least 20, more preferably at least 30.</p> |