Photosensitive resin composition, photosensitive sheet, cured film, method for producing cured film, electronic component, antenna element, semiconductor package, and display device

A photosensitive resin composition comprising a resin (A3) and a photopolymerization initiator (B), the resin (A3) containing one or more structural units represented by any of the following formula (1), formula (3), and formula (5), and the resin further containing one or more structural represented by any of the following formula (2), formula (4), and formula (6):

• wherein in formula (1), X1 denotes a tetravalent organic group containing 2 to 60 carbon atoms;
• Y1 denotes a divalent organic group containing 2 to 70 carbon atoms;
• at least either X1 or Y1 is a multivalent carboxylic acid residue and/or a multivalent amine residue having an alicyclic hydrocarbon structure that contains 4 to 8 carbon atoms and that may contain an unsaturated bond, with at least four or more hydrogen atoms in the alicyclic hydrocarbon structure being each substituted by a hydrocarbon group that contains 4 to 12 carbon atoms and that may contain an unsaturated bond;
• and * denotes a bonding point;
• wherein in formula (2), X2 denotes a tetravalent to hexavalent organic group containing 2 to 60 carbon atoms;
• Y2 denotes a divalent to hexavalent organic group containing 2 to 70 carbon atoms;
• R1's and R2's each independently denote a carboxyl group, a hydroxyl group, or a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• at least one of R1's and R2's is a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• p denotes an integer of 0 to 2;
• q denotes an integer of 0 to 4;
• the relation 1≤p+q≤6 holds;
• and * denotes a bonding point;
• wherein in formula (3), X3 denotes a tetravalent organic group containing 2 to 60 carbon atoms;
• Y3 denotes a divalent organic group containing 2 to 70 carbon atoms;
• at least either X3 or Y3 is a multivalent carboxylic acid residue and/or a multivalent amine residue having an alicyclic hydrocarbon structure that contains 4 to 8 carbon atoms and that may contain an unsaturated bond, with at least four or more hydrogen atoms in the alicyclic hydrocarbon structure being each substituted by a hydrocarbon group that contains 4 to 12 carbon atoms and that may contain an unsaturated bond;
• and * denotes a bonding point;
• wherein in formula (4), X4 denotes a tetravalent to hexavalent organic group containing 2 to 60 carbon atoms;
• Y4 denotes a divalent to hexavalent organic group containing 2 to 70 carbon atoms;
• R3's and R4's may be identical to or different from each other and each independently denote a carboxyl group, a hydroxyl group, or a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• at least one of R3's and R4's is a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• r denotes an integer of 0 to 2;
• s denotes an integer of 0 to 4;
• the relation 1≤r+s≤6 holds, and * denotes a bonding point;
• wherein in formula (5), X5 denotes a tetravalent organic group containing 2 to 60 carbon atoms;
• Y5 denotes a divalent organic group containing 2 to 70 carbon atoms;
• at least either X5 or Y5 is a multivalent carboxylic acid residue and/or a multivalent amine residue having an alicyclic hydrocarbon structure that contains 4 to 8 carbon atoms and that may contain an unsaturated bond, with at least four or more hydrogen atoms in the alicyclic hydrocarbon structure being each substituted by a hydrocarbon group that contains 4 to 12 carbon atoms and that may contain an unsaturated bond;
• (COOR5) is a substituent group located at a position where it can form an imide ring with an amide group bonded to X5;
• R5 denotes a hydrogen atom or an organic group containing 1 to 5 carbon atoms;
• and * denotes a bonding point;
• wherein in formula (6), X6 denotes a tetravalent to hexavalent organic group containing 2 to 60 carbon atoms;
• Y6 denotes a divalent to hexavalent organic group containing 2 to 70 carbon atoms;
• (COOR6) is a substituent group located at a position where it can form an imide ring with an amide group bonded to X6;
• R6 is a hydrogen atom or an organic group containing 1 to 5 carbon atoms;
• R7 is a hydroxyl group or a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• R8 is a carboxyl group, a hydroxyl group, or a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• at least one of R7's and R8's contains 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• t denotes an integer of 0 to 2;
• u denotes an integer of 0 to 4;
• the relation 1≤t+u≤6 holds;
• and * denotes a bonding point;
• wherein at least one of the structural units represented by formula (1), (3), or (5) accounts for 1 to 30 mol % relative to all structural units, which accounts for 100 mol %, in the resin (A3);
• and
• wherein a phenolic hydroxyl group accounts for 1 to 25 mol % relative to all structural units, which account for 100 mol %, in the resin (A3).

A photosensitive resin composition comprising a resin (A3) and a photopolymerization initiator (B), the resin (A3) containing one or more structural units represented by the following formula (1) or formula (3), and the resin further containing one or more structural units represented by the following formula (2) or formula (4):

• wherein in the formula (1), X1 denotes a tetravalent organic group containing 2 to 60 carbon atoms;
• Y1 denotes a divalent organic group containing 2 to 70 carbon atoms;
• at least either X1 or Y1 is a multivalent carboxylic acid residue and/or a multivalent amine residue having an alicyclic hydrocarbon structure that contains 4 to 8 carbon atoms and that may contain an unsaturated bond, with at least four or more hydrogen atoms in the alicyclic hydrocarbon structure being each substituted by a hydrocarbon group that contains 4 to 12 carbon atoms and that may contain an unsaturated bond;
• and * denotes a bonding point,
• wherein in the formula (2), X2 denotes a tetravalent to hexavalent organic group containing 2 to 60 carbon atoms;
• Y2 denotes a divalent to hexavalent organic group containing 2 to 70 carbon atoms;
• R1's and R2's each independently denote a carboxyl group, a hydroxyl group, or a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• at least one of R1's and R2's is a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• p denotes an integer of 0 to 2;
• q denotes an integer of 0 to 4;
• the relation 1≤p+q≤6 holds;
• and * denotes a bonding point,
• wherein in the formula (3), X3 denotes a tetravalent organic group containing 2 to 60 carbon atoms;
• Y3 denotes a divalent organic group containing 2 to 70 carbon atoms;
• at least either X3 or Y3 is a multivalent carboxylic acid residue and/or a multivalent amine residue having an alicyclic hydrocarbon structure that contains 4 to 8 carbon atoms and that may contain an unsaturated bond, with at least four or more hydrogen atoms in the alicyclic hydrocarbon structure being each substituted by a hydrocarbon group that contains 4 to 12 carbon atoms and that may contain an unsaturated bond;
• and * denotes a bonding point,
• wherein in the formula (4), X4 denotes a tetravalent to hexavalent organic group containing 2 to 60 carbon atoms;
• Y4 denotes a divalent to hexavalent organic group containing 2 to 70 carbon atoms;
• R3's and R4's may be identical to or different from each other and each independently denote a carboxyl group, a hydroxyl group, or a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• at least one of R3's and R4's is a monovalent organic group containing 3 to 30 carbon atoms and having an ethylenically unsaturated bond;
• r denotes an integer of 0 to 2;
• s denotes an integer of 0 to 4;
• the relation 1≤r+s≤6 holds, and * denotes a bonding point, and
• wherein at least one of the structural units represented by formula (1) or (3) accounts for 1 to 30 mol % relative to all structural units, which accounts for 100 mol %, in the resin (A3).