RESIN COMPOSITION, PREPREG AND METAL CLAD LAMINATED BOARD

摘要

PROBLEM TO BE SOLVED: To provide a resin composition which is excellent in drilling processability represented by a long drill life, a small hole wall roughness and a good hole position accuracy, a prepreg using the same and a metal clad laminated board. SOLUTION: The resin composition contains (a) a thermosetting resin and (b) 40-70 wt.% inorganic filler. Here, (b) the inorganic filler comprises 50-80 wt.% synthetic spherical silica having an average particle size of 0.4-0.7μm and 20-50 wt.% inorganic filler having a Mohs' hardness of 1-5. COPYRIGHT: (C)2005,JPO&NCIPI