Abstract: A thermosetting resin composition containing a thermosetting resin and an inorganic filler, in which the inorganic filler contains secondary sintered particles (A) formed of primary particles of boron nitride, which have an aspect ratio of 10 to 20, and secondary sintered particles (B) formed of the primary particles of boron nitride, which have an aspect ratio of 2 to 9. The thermosetting resin composition can produce a thermal conductive sheet that has excellent filling property of the inorganic filler, and excellent thermal conductivity, adhesiveness and electrical insulating properties.

Abstract: A method for manufacturing, by a transfer mold method, a power module equipped with a heat conductive insulating sheet in which an inorganic filler including secondary aggregated particles formed by aggregation of primary particles of scaly boron nitride is dispersed in a thermosetting resin, where curing of an uncured or semi-cured heat conductive insulating sheet during transfer molding is advanced under specific conditions. The method for manufacturing a power module equipped with a heat conductive insulating sheet has excellent thermal conductivity and electric insulation ability.

Abstract: A probe pin according to an embodiment of the present invention has a two-piece structure consisting of a pogo pin part and a barrel part, in which the pogo pin part includes an upper plunger having an outside contact point at an upper end, a lower plunger having an outside contact point at a lower end, and a spring portion composed of one or more springs and connected to a lower end of the upper plunger and an upper end of the lower plunger; and the barrel part has a cylindrical shape surrounding a portion of the pogo pin part and has a barrel-fixing spring portion protruding on an outer side of the barrel part to apply elasticity outward.

Abstract: A probe pin according to an embodiment of the present invention has a two-piece structure consisting of a pogo pin part and a barrel part, in which the pogo pin part includes an upper plunger having an outside contact point at an upper end, a lower plunger having an outside contact point at a lower end, and a spring portion composed of one or more springs and connected to a lower end of the upper plunger and an upper end of the lower plunger; and the barrel part has a cylindrical shape surrounding a portion of the pogo pin part and has a barrel-fixing spring portion protruding on an outer side of the barrel part to apply elasticity outward.

Abstract: A thermosetting resin composition containing a thermosetting resin and an inorganic filler, in which the inorganic filler contains secondary sintered particles (A) formed of primary particles of boron nitride, which have an aspect ratio of 10 to 20, and secondary sintered particles (B) formed of the primary particles of boron nitride, which have an aspect ratio of 2 to 9. The thermosetting resin composition can produce a thermal conductive sheet that has excellent filling property of the inorganic filler, and excellent thermal conductivity, adhesiveness and electrical insulating properties.

Abstract: A method for manufacturing, by a transfer mold method, a power module equipped with a heat conductive insulating sheet in which an inorganic filler including secondary aggregated particles formed by aggregation of primary particles of scaly boron nitride is dispersed in a thermosetting resin, where curing of an uncured or semi-cured heat conductive insulating sheet during transfer molding is advanced under specific conditions. The method for manufacturing a power module equipped with a heat conductive insulating sheet has excellent thermal conductivity and electric insulation ability.