Abstract: A thermosetting resin composition containing a maleimide compound (a) having at least one N-substituted maleimide group, and a compound (b) represented by the following general formula (1) exhibiting no reactivity with the maleimide group of the component (a) (Xb1 represents a single bond or a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 5 carbon atoms; Rb1 and Rb2 each independently represent a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 18 ring carbon atoms, a substituted or unsubstituted heterocyclic aromatic hydrocarbon group having 5 to 20 ring atoms, an oxygen atom-containing group, or a group containing a combination of these groups; and m and n each independently represent an integer of 0 to 5).

Abstract: The present invention provides a prepreg for a coreless substrate and a coreless substrate and a semiconductor package using the prepreg, which can satisfy heat resistance, low thermal expansion, and bonding strength with a metal circuit at a level required for the coreless substrate. Specifically, the prepreg for a coreless substrate contains a thermosetting resin composition containing (a) dicyandiamide, (b) an adduct of a tertiary phosphine and quinones, (c) an amine compound having at least two primary amino groups, and (d) a maleimide compound having at least two primary amino groups having at least two N-substituted maleimide groups. Instead of (c) the amine compound having at least two primary amino groups and (d) the maleimide compound, having at least two N-substituted maleimide groups, (X) an amino-modified polyimide resin obtained by reacting them may be used.

Abstract: The present invention relates to a prepreg including a fiber base material layer containing a fiber base material, a first resin layer formed on one surface of the fiber base material layer, and a second resin layer formed on the other surface of the fiber base material layer, wherein the first resin layer is a layer obtained through layer formation of a resin composition (I) containing, as a main component of resin components, an epoxy resin (A), and the second resin layer is a layer obtained through layer formation of a resin composition (II) containing, as a main component of resin components, an amine compound (B) having at least two primary amino groups in one molecule thereof and a maleimide compound (C) having at least two N-substituted maleimide groups in one molecule thereof; a laminated sheet obtained by using the prepreg; a printed wiring board; a coreless board; a semiconductor package; and a method of producing a coreless board.

Abstract: The present invention relates to a prepreg including a fiber base material layer containing a fiber base material, a first resin layer formed on one surface of the fiber base material layer, and a second resin layer formed on the other surface of the fiber base material layer, wherein the first resin layer is a layer obtained through layer formation of a resin composition (I) containing, as a main component of resin components, an epoxy resin (A), and the second resin layer is a layer obtained through layer formation of a resin composition (II) containing, as a main component of resin components, an amine compound (B) having at least two primary amino groups in one molecule thereof and a maleimide compound (C) having at least two N-substituted maleimide groups in one molecule thereof; a laminated sheet obtained by using the prepreg; a printed wiring board; a coreless board; a semiconductor package; and a method of producing a coreless board.

Abstract: The present invention provides a prepreg for a coreless substrate including a thermosetting resin composition containing (a) (meth)acrylic elastomer, (b) an amine compound having at least two primary amino groups, and (c) a maleimide compound having at least two N-substituted maleimide groups, and a coreless substrate using the same, a method of manufacturing the coreless substrate, and a semiconductor package.

Abstract: The present invention provides a prepreg for a coreless substrate including a thermosetting resin composition containing (a) (meth)acrylic elastomer, (b) an amine compound having at least two primary amino groups, and (c) a maleimide compound having at least two N-substituted maleimide groups, and a coreless substrate using the same, a method of manufacturing the coreless substrate, and a semiconductor package.

Abstract: The present invention provides a thermosetting resin composition comprising (A) a metal salt of disubstituted phosphinic acid, (B) a maleimide compound having a N-substituted maleimide group in a molecule, (C) a 6-substituted guanamine compound or dicyandiamide and (D) an epoxy resin having at least two epoxy groups in a molecule and a prepreg and a laminated plate which are prepared by using the same. The prepregs obtained by impregnating or coating a base material with the thermosetting resin compositions of the present invention and the laminated plates produced by laminating and molding the above prepregs are balanced in all of a copper foil adhesive property, a glass transition temperature, a solder heat resistance, a moisture absorption, a flame resistance, a relative dielectric constant and a dielectric loss tangent, and they are useful as a printed wiring board for electronic instruments.

Abstract: The present invention provides a prepreg for a coreless substrate and a coreless substrate and a semiconductor package using the prepreg, which can satisfy heat resistance, low thermal expansion, and bonding strength with a metal circuit at a level required for the coreless substrate. Specifically, the prepreg for a coreless substrate contains a thermosetting resin composition containing (a) dicyandiamide, (b) an adduct of a tertiary phosphine and quinones, (c) an amine compound having at least two primary amino groups, and (d) a maleimide compound having at least two primary amino groups having at least two N-substituted maleimide groups. Instead of (c) the amine compound having at least two primary amino groups and (d) the maleimide compound, having at least two N-substituted maleimide groups, (X) an amino-modified polyimide resin obtained by reacting them may be used.

Abstract: Discloses are a thermosetting resin composition containing a maleimide compound including an unsaturated maleimide compound having a specified chemical structure, a thermosetting resin, an inorganic filler, and a molybdenum compound; a laminate plate for wiring boards obtained by coating a base material with a thermosetting resin composition containing a thermosetting resin, silica, and a specified molybdenum compound and then performing semi-curing to form a prepreg, and laminating and molding the prepreg; and a method for manufacturing a resin composition varnish including specified steps. According to the present invention, electronic components having low thermal expansion properties and excellent drilling processability and heat resistance, for example, a prepreg, a laminate plate, an interposer, etc., can be provided.

Abstract: A thermosetting resin composition containing: (A) a resin composition having an unsaturated maleimide group, produced by reacting (a) a maleimide compound having at least two N-substituted maleimide groups per one molecule and (b) an amine compound having at least two primary amino groups per one molecule, in an organic solvent; (B) a thermosetting resin; and (C) a modified imidazole compound, such as an isocyanate-masked imidazole and an epoxy-masked imidazole, and a prepreg, an insulating film with a support, a laminate plate and a printed wiring board, each containing the same.

Abstract: Discloses are a thermosetting resin composition containing a maleimide compound including an unsaturated maleimide compound having a specified chemical structure, a thermosetting resin, an inorganic filler, and a molybdenum compound; a laminate plate for wiring boards obtained by coating a base material with a thermosetting resin composition containing a thermosetting resin, silica, and a specified molybdenum compound and then performing semi-curing to form a prepreg, and laminating and molding the prepreg; and a method for manufacturing a resin composition varnish including specified steps. According to the present invention, electronic components having low thermal expansion properties and excellent drilling processability and heat resistance, for example, a prepreg, a laminate plate, an interposer, etc., can be provided.

Abstract: The present invention provides a thermosetting resin composition comprising (A) a curing agent having an acidic substituent and an unsaturated maleimide group which is produced by a specific method, (B) a 6-substituted guanamine compound and/or dicyandiamide, (C) a copolymer resin comprising specific monomer units and (D) an epoxy resin and a prepreg and a laminated plate which are prepared by using the same. The thermosetting resin composition of the present invention is balanced in all of a copper foil adhesive property, a heat resistance, a moisture absorption, a flame resistance, a metal-stuck heat resistance, a relative dielectric constant and a dielectric loss tangent. They have a low toxicity and are excellent in a safety and a working environment, and therefore a prepreg and a laminated plate which have excellent performances are obtained by using the above thermosetting resin composition.

Abstract: The present invention provides a thermosetting resin composition comprising (A) a curing agent having an acidic substituent and an unsaturated maleimide group which is produced by a specific method, (B) a 6-substituted guanamine compound and/or dicyandiamide, (C) a copolymer resin comprising specific monomer units and (D) an epoxy resin and a prepreg and a laminated plate which are prepared by using the same. The thermosetting resin composition of the present invention is balanced in all of a copper foil adhesive property, a heat resistance, a moisture absorption, a flame resistance, a metal-stuck heat resistance, a relative dielectric constant and a dielectric loss tangent. They have a low toxicity and are excellent in a safety and a working environment, and therefore a prepreg and a laminated plate which have excellent performances are obtained by using the above thermosetting resin composition.

Abstract: The present invention provides a thermosetting resin composition comprising (A) a metal salt of disubstituted phosphinic acid, (B) a maleimide compound having a N-substituted maleimide group in a molecule, (C) a 6-substituted guanamine compound or dicyandiamide and (D) an epoxy resin having at least two epoxy groups in a molecule and a prepreg and a laminated plate which are prepared by using the same. The prepregs obtained by impregnating or coating a base material with the thermosetting resin compositions of the present invention and the laminated plates produced by laminating and molding the above prepregs are balanced in all of a copper foil adhesive property, a glass transition temperature, a solder heat resistance, a moisture absorption, a flame resistance, a relative dielectric constant and a dielectric loss tangent, and they are useful as a printed wiring board for electronic instruments.

Abstract: Discloses are a thermosetting resin composition containing a maleimide compound including an unsaturated maleimide compound having a specified chemical structure, a thermosetting resin, an inorganic filler, and a molybdenum compound; a laminate plate for wiring boards obtained by coating a base material with a thermosetting resin composition containing a thermosetting resin, silica, and a specified molybdenum compound and then performing semi-curing to form a prepreg, and laminating and molding the prepreg; and a method for manufacturing a resin composition varnish including specified steps. According to the present invention, electronic components having low thermal expansion properties and excellent drilling proccessability and heat resistance, for example, a prepreg, a laminate plate, an interposer, etc., can be provided.

Abstract: Discloses are a thermosetting resin composition containing a maleimide compound including an unsaturated maleimide compound having a specified chemical structure, a thermosetting resin, an inorganic filler, and a molybdenum compound; a laminate plate for wiring boards obtained by coating a base material with a thermosetting resin composition containing a thermosetting resin, silica, and a specified molybdenum compound and then performing semi-curing to form a prepreg, and laminating and molding the prepreg; and a method for manufacturing a resin composition varnish including specified steps. According to the present invention, electronic components having low thermal expansion properties and excellent drilling processability and heat resistance, for example, a prepreg, a laminate plate, an interposer, etc., can be provided.

Abstract: A thermosetting resin composition containing: (A) a resin composition having an unsaturated maleimide group, produced by reacting (a) a maleimide compound having at least two N-substituted maleimide groups per one molecule and (b) an amine compound having at least two primary amino groups per one molecule, in an organic solvent; (B) a thermosetting resin; and (C) a modified imidazole compound, such as an isocyanate-masked imidazole and an epoxy-masked imidazole, and a prepreg, an insulating film with a support, a laminate plate and a printed wiring board, each containing the same.

Abstract: Disclosed is a prepreg including a fiber substrate and a layer made of a thermosetting resin composition, wherein the layer made of a thermosetting resin composition contains a modified silicone oil or a compound having a skeleton derived from a modified silicone oil, and the layer made of a thermosetting resin composition has a phase separation structure. A prepreg having excellent low thermal expansion properties and warpage characteristics which are difficult to be realized by using only a conventional resin which is effective for highly filling an inorganic filler or has a low coefficient of thermal expansion, and a laminate using the same, and a printed wiring board can be provided.

Abstract: The invention provides a method for producing a curing agent having an acidic substituent and an unsaturated maleimido group, including reacting, in an organic solvent, a maleimide compound (a) having at least two N-substituted maleimido groups in a molecule thereof with an amine compound (b) having an acidic substituent (represented by formula (I)); a thermosetting resin composition containing the curing agent (A) produced through the method and a compound (B) which is cured with the curing agent, wherein a cured product of the composition has a glass transition temperature of 200° C. or higher; and a prepreg and a laminated sheet produced therefrom.

Abstract: Provided are a process for producing a compatibilized resin including reacting a cyanate compound, a siloxane resin having a hydroxyl group at an end thereof, and an epoxy resin at a specified rate of reaction; a thermosetting resin composition containing (A1) a compatibilized resin produced by the foregoing process or (A2) a thermosetting resin obtained by reacting a cyanate compound and a siloxane resin having a hydroxyl group at an end thereof at a specified rate of reaction, and (B) fused silica having been subjected to a surface treatment with a trimethoxysilane compound; and a prepreg, a laminate, and a wiring board each using the same.