发明名称 Aqueous developer solution having hydroxy-alkyl piperidine for positive-working photoresists
摘要 An aqueous developer solution contains, as a water-soluble basic compound, a compound of the general formula (I) <IMAGE> (I) where R1 to R5 are identical or different and are each H, OH, hydroxyalkyl, alkoxy or alkyl. It is suitable for developing positive-working photoresists.
申请公布号 US5039595(A) 申请公布日期 1991.08.13
申请号 US19890391253 申请日期 1989.08.09
申请人 BASF AKTIENGESELLSCHAFT 发明人 SCHWALM, REINHOLD;BINDER, HORST
分类号 G03F7/32 主分类号 G03F7/32
代理机构 代理人
主权项
地址