Curable resin composition containing siloxane resin having polysilsesquioxane structure, optical member set, method of producing the same, and solid state imaging device using the same

摘要

A curable resin composition, for forming a first optical member of an optical member set, the optical member having the first optical member and a second optical member covered with the first optical member, the first optical member being formed by curing a siloxane resin, comprising: a siloxane resin, a surfactant, and a solvent, the siloxane resin and the surfactant being contained in the solvent, the surfactant having a polyoxyalkylene structure, the siloxane resin being defined in 65% by mass to 100% by mass thereof having a particular polysilsesquioxane structure.

主权项

1. A curable resin composition, for forming a first optical member of an optical member set, the optical member set having the first optical member and a second optical member covered with the first optical member set, the first optical member being formed by curing a siloxane resin, the curable resin composition comprising:
a siloxane resin, a surfactant, and a solvent, the siloxane resin and the surfactant being contained in the solvent, the surfactant having a polyoxyalkylene structure, and 100% by mass of the total amount of the siloxane resin contained in the resin composition having a polysilsesquioxane structure represented by formula (1):
—(R1SiO3/2)n—  Formula (1) wherein R1 represents an alkyl group having 1 to 3 carbon atom(s); and n represents an integer of 20 to 1,000, and the siloxane resin being a resin obtained by hydrolytic condensation of an alkyltrialkoxysilane represented by formula (2) as a raw material,
R2Si(OR3)3   Formula (2) wherein R2 represents an alkyl group having 1 to 3 carbon atom(s); and R3 represents an alkyl group, and wherein the surfactant having a polyoxyalkylene structure is represented by the following formula (4):
R5O(R6O)mR7   Formula (4) wherein, in formula (4), R5 represents an alkyl group having 1 to 20 carbon atom(s); R6 represents an alkylene group having 1 to 4 carbon atom(s); R7 represents a hydrogen atom, a carboxyl group, —PO3H2, or —NH2; and m represents an integer of 1 to 8.