MANUFACTURE OF MULTILAYER PRINTED CIRCUIT BOARD

摘要

PURPOSE:To reduce the number of steps by conducting the step of electrically connecting to be executed for a surface blind viahole of a multilayer printed circuit board simultaneously upon the other step. CONSTITUTION:A land 6 is electrically connected to a land 7 via solder 11 by allowing solder paste 10 to reflow after the paste 10 is metal screen printed on a surface blind viahole 12 of a multilayer printed circuit board.