Patent ID: 9580567
Date: 2017-02-28
CPC Classifications: C08G,C08J,C08L,C09D,G03F

Claim:
1. A positive-type photosensitive siloxane composition consisting of (I) at least two kinds or more of polysiloxanes that differ in the rate of dissolution in tetramethylammonium hydroxide aqueous solutions, (II) a polysiloxane having a group soluble in a tetramethylammonium hydroxide aqueous solution, other than a silanol group, (III) a diazonaphthoquinone derivative, (IV) a solvent and (V) an optional component selected from the group consisting of surfactants, sensitizers and mixtures thereof, wherein the polysiloxane (I) is a mixture which consists of (A) a polysiloxane (Ia) obtained by hydrolyzing and condensing a silane compound represented by the formula (1): wherein R in the presence of a basic catalyst, a film after prebaking of which is soluble in a 5 wt-% tetramethylammonium hydroxide aqueous solution and has a rate of dissolution in the 5 wt-% tetramethylammonium hydroxide aqueous solution of 1,000 Å/second or less, and (B) a polysiloxane (Ib) obtained by hydrolyzing and condensing the silane compound represented by the aforementioned formula (1) in the presence of an acidic or basic catalyst, a film after prebaking of which has a rate of dissolution in a 2.38 wt-% tetramethylammonium hydroxide aqueous solution of 200 Å/second or more, and a rate of dissolution in a 2.38 wt-% tetramethylammonium hydroxide aqueous solution of the mixture is 50 to 1,000 Å/second, and the polysiloxane (II) having a group soluble in a tetramethylammonium hydroxide aqueous solution other than a silanol group is a polysiloxane, a film after prebaking of which has a rate of dissolution in a 2.38 wt-% tetramethylammonium hydroxide aqueous solution of 50 to 1,000 Å/second.