摘要
高频混压板集传统材料和高频高速材料的特点于一身，既满足了高频高速信号传输的要求，同时又降低了制造成本，且使其二者的机械性能和电性能都得到较好地体现。而由于两种材料的性能存在较大差异，在加工过程中易出现孔粗、灯芯过大和铜瘤等不良现象。文章选用含陶瓷填充的聚四氟乙烯覆铜板与环氧树脂板进行混压，制作了FR-4／PTFE／FR-4结构的高频混压电路板。采用综合平衡法和综合评分法对混压板的进刀速、钻速等重要钻孔参数进行优化，并结合铝片类型、冷冲板、钻刀寿命等对钻孔质量的影响进行分析，从材料选择和工艺参数控制等方面研究以获得聚四氟乙烯高频混压电路板最佳的工艺参数。最终达到产品的应用要求。
High-frequency mixing-laminated PCB combining the characteristics of traditional materials and high-frequency high-speed materials, meets the requirements of high-frequency and high-speed signal transmission and reduces the manufacturing cost, so that the mechanical properties and the electrical properties of them are better reflected. However, rough hole wall, large wicks, copper tumors, and other undesirable phenomena are prone to occur due to the large differences in performance between the two materials. This article selects the ceramic filled polytetrafluoroethylene copper cladded laminate and the epoxy resin plate to press together to fabricate a high frequency mixed circuit board with FR-4/PTFE/FR-4 structure. Comprehensive balancing method and comprehensive scoring method are used to optimize the important drilling parameters such as feed speed and drilling speed of the mixed plate. And the influences of the type of aluminum plate, phenolic paper laminate and the life of the drill on its drilling quality are analyzed. The best process parameter of PTFE high-frequency mixing-laminated PCB is obtained from the research of the selection of materials and control of process parameters, which finally reach the application requirements of the product.
作者
苟雪萍
周国云
何为
王守绪
陈苑明
陈世金
徐缓
金敏
周先文
Gou Xueping;Zhou Guoyun;He Wei;Wang Shouxu;Chen Yuanming;Chen Shijin;Xu Huan;Jin Min;Zhou Xianwen
出处
《印制电路信息》
2018年第A02期141-152,共12页
Printed Circuit Information
关键词
聚四氟乙烯
高频混压板
钻孔参数
盖板
钻刀寿命
Polytetrafluoroethylene
High-frequency mixing-laminated Board
Drilling Parameters
Entry Board
Drill Life
