Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1991-07-05
1993-01-05
McCamish, Marion E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
525431, 522134, 522148, 522 35, 522905, 528 25, G03C 1492, C08F 250, C08L 7700, C08L 8300
Patent
active
051769824
ABSTRACT:
Disclosed is a photosensitive resin composition for forming a polyimide film pattern. The composition contains a polyamic acid and at least one silyl ketone compound represented by general formula (II) given below, ##STR1## where each of R.sup.3 to R.sup.16 is a are substituted or unsubstituted alkyl group having 1 to 12 carbon atoms or a substituted or unsubstituted aromatic group having 6 to 14 carbon atoms, each of R.sup.5 to R.sup.16 may be a substituted or unsubstituted silyl group, and each of l, m, n, s, t and u is 0 or 1, at least one of l, m, n, s, t and u being 1. The composition further contains a sensitizer, as required. A semiconductor substrate is coated with the composition, followed by exposing the coating through a predetermined mask and subsequently developing and heat-treating the coating so as to form a polyimide film pattern.
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World Patent Index Latest, Week 9015, Derwent Publications Ltd., London, GB; AN90-110550 & JP-A-2 059 752 (Toshiba K.K.)"abstract".
Polymer Preprints, Japan, vol. 39, No. 3, (1990), p. 802.
Hayase Shuzi
Mikogami Yukihiro
Nakano Yoshihiko
Berman Susan
Kabushiki Kaisha Toshiba
McCamish Marion E.
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