| 摘要 |
PROBLEM TO BE SOLVED: To provide an insulation sheet for a printed wiring board which makes a product simply and quickly discriminable in a process of manufacturing a plurality of layer built-up wiring boards. SOLUTION: A thermosetting resin composition for use in the insulation sheet for the printed wiring board contains a thermosetting resin, a curing accelerating compound, a flexible material and a coloring component as necessary components. |
