| 摘要 |
A B stage sheet is configured from a semi-cured epoxy resin composition that comprises epoxy resin with a biphenyl structure, curing agent having a partial structure represented by general formula (IIa), inorganic filler and elastomer. In the formula, m and n represent positive numbers and Ar represents a group represented by general formula (IIIa) or (IIIb). R11 and R14 represent hydrogen atoms or hydroxyl groups. R12 and R13 represent hydrogen atoms or alkyl groups. |
