摘要:
A method and apparatus for manufacturing a multiplayer printed wiring board where the variation in the plate thickness and misregistration are eliminated by eliminating resin flow. The method for manufacturing a multiplayer printed wiring board by stacking a conductive foil or a conductor clad laminate sheet for the outer layer, a prepreg (5), and a conductor clad laminate sheet for the inner layer and then curing the prepreg (5) by hot press is characterized in that impurities are removed from the surface of the conductive foil or the conductor clad laminate sheet for outer layer, the prepreg (5), and the conductor clad laminate sheet for the inner layer by blowing gas (13) thereto before the hot press.
摘要:
The present invention has an object to provide a producing method and producing apparatus of multilayered printed-circuit board that has eliminated the resin flow and resolved the problems of board thickness discrepancy and misregistration. A producing method of multilayered printed-circuit board , comprising steps of stacking up a laminated sheet covered with conductive foil or conductor for outer layer, a prepreg and a laminated sheet covered with conductor for inner layer and, thereafter, setting the prepreg by pressurizing/heating, wherein, before conducting the pressurizing/heating, gas is sprayed to the surface of the laminated sheet covered with conductive foil or conductor for outer layer, a prepreg and a laminated sheet covered with conductor for inner layer to eliminate impurities from the surface.