硬化性树脂组成物、硬化物及半导体装置

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The present invention provides a curable resin composition having good solubility in silicone resin even the addition amount of rare earth compounds being increased, without precipitation, and capable of forming a cured article by being cured, which has good transparency and excellent thermal-resistance, especially with increase of hardness and brittle being inhibited even under a high temperature condition about 250℃. The curable resin composition of the present invention comprises a polysiloxane (A) which is at least one selected from the group consisting of a polyorganosiloxane (A1) having two or more alkenyl groups in molecule and a polyorganosiloxysilalkylene (A2) having two or more alkenyl groups in molecule, a polysiloxane (B) which is at least one selected from the group consisting of a polyorganosiloxane (B1) having two or more hydrosilyl groups in molecule and a polyorganosiloxysilalkylene (B2) having two or more hydrosilyls group in molecule, and a rare earth compound (C), wherein the amount of rare earth metal atoms is 30~500 ppm base on the total amount of the curable resin composition. Further, the rare earth compound (C) represented by the formula (1) is the same as described in the specification.