| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated sheet, to which fine pores can be formed by drill processing, by suppressing the breaking of a drill, the abrasion of the drill or the deterioration of the inner wall roughness of holes while holding sufficient rigidity. SOLUTION: Since glass cloth with a thickness of 0.10 mm or less reduced in tensile strength by heat treatment contains a resin composition obtained by compounding a thermosetting resin, a curing agent, a curing accelerator and an inorganic filler, glass fibers of the glass cloth can be made fragile by thermal deterioration and drilling properties can be enhanced. COPYRIGHT: (C)2004,JPO |
