Resin composition, resin sheet, multilayer printed wiring board, and semiconductor device
A resin composition of the present invention is a resin composition containing a bismaleimide compound (A) containing a constituent unit represented by the following formula (1), and maleimide groups at both ends of the molecular chain, at least one resin or compound (B) selected from the group consisting of a maleimide compound other than the bismaleimide compound (A), a cyanate compound, a benzoxazine compound, an epoxy resin, a carbodiimide compound, and a compound having an ethylenically unsaturated group, and a photo initiator (C): wherein R 1 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms; R 2 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms; each R 3 independently represents a hydrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, or a linear or branched alkenyl group having 2 to 16 carbon atoms; and each n independently represents an integer of 1 to 10.
1. A multilayer printed wiring board comprising:
an insulating layer; and
a conductor layer formed on one surface or both surfaces of the insulating layer,
wherein the insulating layer comprises a resin composition comprising a bismaleimide compound (A) comprising a constituent unit represented by the following formula (1), and maleimide groups at both ends of the molecular chain;
at least one resin or compound (B) selected from the group consisting of a cyanate compound, a benzoxazine compound, an epoxy resin, a carbodiimide compound, and a compound having two or more ethylenically unsaturated groups in a molecule; and
a photo initiator (C):
wherein R 1 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms; R 2 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms; each R 3 independently represents a hydrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, or a linear or branched alkenyl group having 2 to 16 carbon atoms; and each n independently represents an integer of 1 to 10.
2. The multilayer printed wiring board of claim 1 , wherein the photo initiator (C) comprises a compound represented by the following formula (2):
wherein each R 4 independently represents a substituent represented by the following formula (3) or a phenyl group; and
wherein -* represents a bonding hand, and each R 5 independently represents a hydrogen atom or a methyl group.