| 摘要 |
PURPOSE:To enhance the work to which a prepreg is related among the combination works of constitutional materials in the production of a laminated sheet and a multilayered printed wiring board and to reduce a resin powder scattered from the prepreg. CONSTITUTION:A plurality of superposed prepregs are bonded at the peripheral end edges thereof under heating and pressure to form a composite prepreg. In the composite prepreg 4 for a pin laminate type multilayered printed wiring board, the peripheral parts 2 of pinholes 1 are bonded under heating and pressure. |
