摘要
研究了一种基于体硅工艺和BCB厚膜布线技术的微波多芯片组件新封装结构,将特定组件中多个微波芯片埋置在接地金属化的硅腔体中,通过热压焊金凸点将芯片垂直引出,并于其上布置多层BCB/Au微波传输线,层间互连则连采用电镀金凸点为通柱。对封装中各微波信号通路的电学性能、封装环境对芯片电学功能的影响和可集成于封装中的Ku波段带通滤波器进行了模拟与优化研究。
A novel embedded package structure for Microwave Multichip Module (MMCM)is studied, which is based on MEMS process and BCB thick film technology. A set of microwave chips are embedded in metalized silicon cavities, and then electrically connected through bonded gold bumps to the upper multilayer BCB/Au transmission lines. Interlayer connection is realized by electroplated gold pillars. Per- formance of transmission lines, electric influence to chip introduced by package and Ku - band bandpass filters that can be integrated in this package are simulated and optimized by HFSS.
出处
《功能材料与器件学报》
CAS
CSCD
北大核心
2009年第2期125-131,共7页
Journal of Functional Materials and Devices
关键词
多芯片组件
埋置型封装
微波传输性能
multichip module, embedded package, microwave transmission performance