Fretting Behavior of PCB Contacts and the Influencing Factors

摘要：

Contacts on printed circuit board (PCB) are frequently coated with flash gold plating of thickness less than 0.1 μm. PCB contact behaves different behaviors which is related to the surface morphology of PCB. One is that contact resistance retains low and stable during fretting duration, when fretting occurs at the valley area of PCB. The other is that contact resistance is low and stable at the beginning fretting cycles, then escalates up to the limited maximal value 1.511. This resistance behavior happens for fretting at the peak area of PCB. When height variance between peak and valley is controlled strictly, fretting behavior does not rely on PCB surface profile but on normal force and probe materials.

关键词： Contact resistance Fretting wear PCB contacts Surface profile

作者: Lin Xueyan

作者单位: Research Lab of Electric contact, BUPT, China

会议类型: 国际会议

会议名称: 第三届电工产品可靠性与电接触国际会议(The 3rd International Conference on Reliability of Electrical Products and Electrical Contacts)

会议地点: 温州

会议语种:英文

页码: 108-111

在线出版日期: 2009-10-18（万方平台首次上网日期，不代表论文的发表时间）