PREPREG, LAMINATE, METAL FOIL-CLAD LAMINATE, CIRCUIT BOARD AND LED MODULE

摘要

[Problem] To provide a laminate which has excellent thermal conductivity, heat resistance, drill workability and flame retardancy. [Solution] A prepreg obtained by impregnating a woven or nonwoven fabric base with a thermosetting resin composition, wherein: the thermosetting resin composition contains 80-200 parts by volume of an inorganic filler per 100 parts by volume of a thermosetting resin; the inorganic filler contains (A) gibbsite type aluminum hydroxide particles having an average particle diameter (D50) of 2-15 µm and (B) magnesium oxide having average particle diameter (D50) of 0.5-15 µm; and the blending ratio (volume ratio) of the gibbsite type aluminum hydroxide particles (A) to the magnesium oxide (B) is 1:0.3-3.