陶瓷介质滤波器焊接工艺技术研究
Research on Welding Technology for Ceramic Dielectric Filter
李亚飞 1张钧翀 1龚旭 1李医虹 1唐盘良 1陈彦光 1马晋毅1
作者信息
- 1. 中国电子科集团公司 第二十六研究所,重庆 400060
- 折叠
摘要
针对陶瓷介质滤波器装配焊接过程中出现介质胚体开裂的问题,通过对裂纹特征观察和材料物理性质分析,在金属屏蔽罩装接、印制板焊盘设计和回流焊工艺等方面进行改进.对焊接后的器件进行温度和力学等可靠性试验,产品测试合格率为 100%,破坏性物理分析(DPA)剖样观察到介质滤波器不存在开裂或微裂纹的失效隐患.结果表明,该焊接工艺能解决陶瓷介质滤波器的焊接裂纹问题,实现了较高的产品可靠性.
Abstract
After observing the crack characteristics and analyzing the physical properties of the materials in-volved,improvements were implemented to address the issue of dielectric blank cracking during the assembly process of a ceramic dielectric filter.These enhancements comprised installing a metal shielding cover and modifying the design of the printed board pad and reflow soldering process.Reliability tests of the welded device,including temperature and mechanical tests,were conducted,resulting in a product qualification rate of 100%.The analysis of DPA section revealed no risk of failure due to cracking or microcracking in the dielectric filter.The research find-ings indicate that this welding process effectively resolves the issue of welding cracks with ceramic dielectric filters,thereby achieving high product reliability.
关键词
介质滤波器/焊接裂纹/热应力/可靠性Key words
ceramic dielectric filter/welding crack/thermal stress/reflow soldering/reliability引用本文复制引用
出版年
2024
NETL
NSTL
万方数据