RADIATION SENSITIVE MIXTURE AND PRODUCTION OF RELIEF PATTERNS

    公开(公告)号:CA1334898C

    公开(公告)日:1995-03-28

    申请号:CA597191

    申请日:1989-04-19

    Applicant: BASF AG

    Abstract: A radiation sensitive mixture useful for producing relief patterns contains (a) a polymeric binder which is insoluble in water but soluble in aqueous alkaline solutions and (b) an organic compound whose solubility in an aqueous alkaline developer is increased by the action of acid and which contains at least one acid cleavable group and additionally a group which forms a strong acid on irradiation, and in addition (c) a nonphotosensitive organic compound which contains at least one acid cleavable bond and the solubility of which in an aqueous alkaline developer is increased by the action of acid, or (d) a nonphotosensitive organic compound which contains at least one acid cleavable bond and which by the action of acid decomposes in such a way as to be completely removable by treatment at from 60 to 120.degree.C

    234.
    发明专利
    未知

    公开(公告)号:DE3775188D1

    公开(公告)日:1992-01-23

    申请号:DE3775188

    申请日:1987-12-04

    Applicant: BASF AG

    Abstract: Copolymer (I) contains units derived from (a) 5-50 (mole) % o-nitro(het)arylalkyl unsatd. carboxylate ester (II), (b) 95-50% p-hydroxy- or O-substd. p-hydroxy-styrene or -alpha-methyl-styrene cpd. (III) of the given formulae and (c) 0-30% other olefinically unsatd. organic comonomer(s) forming homopolymers which are transparent in the 250-400 nm range. In (I) and (II) A = an opt. substd. aromatic or heteroaromatic ring system with 5-14 ring members; X = H, 1-8C alkyl or an opt. substd. aryl or aralkyl gp., Y = a 2-6C ethylenically unsatd. gp., R1 = H or Me; R2 = H, halogen or 1-6C alkyl; R3 = H, 1-6C alkyl, acetyl, benzoyl, 1-6C alkylsilyl, 1-6C alkoxysilyl or tert.-butoxycarbonyl.

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