发明名称 A MANUFACTURE METHOD FOR MUTLILAYER PRINTED CIRCUIT BOARD
摘要 The method comprises a first process for drilling the piled board utilizing a drilling zig, a second process for dividing the piled board into individuals and printing circuit on inner layer, and for drilling a press hole by inputting the position data of film guide and a press hole to CNC drilling machine, and a third process for dividing the board from press fixture and for setting up a drilling guide hole.
申请公布号 KR900001410(B1) 申请公布日期 1990.03.09
申请号 KR19860002898 申请日期 1986.04.15
申请人 KOREA TELECOMMUNICATION RESEARCH INSTITUTE 发明人 KIM YON-KON;OH HAENG-SOK
分类号 H05K3/46;(IPC1-7):H05K3/46 主分类号 H05K3/46
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