覆膜铝片盖板结构对PCB机械钻孔性能的影响

The influence of structure of coated aluminum foil entry board on the mechanical drilling performance of PCB

覆膜铝片盖板产品广泛应用于印制电路板(PCB)机械钻孔中,尤其是在微小孔径的钻孔加工过程中,其可以有效提升孔位精度和综合钻孔效果。主要研究了不同铝厚、膜厚搭配的覆膜铝片产品在0.10、0.15、0.20 mm孔径机械钻孔中的应用,验证其过程能力指数(Cpk)及断钻率性能的变化,并得出覆膜铝片结构和相应孔径的最佳匹配方案。

Coated aluminum foil entry board is widely used in printed circuit board(PCB)mechanical drilling,especially in the drilling process of small holes.They can effectively improve the accuracy of hole positions and enhance the comprehensive drilling effect.This paper mainly studies the application of different structural coated aluminum foil products with different aluminum thickness and film thickness combinations in the mechanical drilling of holed with diameter of 0.1 mm,0.15 mm,and 0.2 mm,verifies their complex process capability index(Cpk)performance and needle breakage performance changes,and obtains the optimal matching scheme for the coated aluminum foil structure and corresponding holes.