陶瓷介质滤波器焊接工艺技术研究  

Research on Welding Technology for Ceramic Dielectric Filter

作　　者：李亚飞 张钧翀 龚旭 李医虹 唐盘良 陈彦光 马晋毅 LI Yafei;ZHANG Junchong;GONG Xu;LI Yihong;TANG Panliang;CHEN Yanguang;MA Jinyi(The 26th Institute of China Electronics Technology Group Corporation,Chongqing 400060,China)

机构地区：[1]中国电子科集团公司第二十六研究所,重庆400060

出　　处：《压电与声光》2024年第2期149-153,共5页Piezoelectrics & Acoustooptics

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。After observing the crack characteristics and analyzing the physical properties of the materials involved,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 findings 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 

分 类 号：TN384[电子电信—物理电子学]