摘要
印刷电路板(PCB)在现代电子设备中起着至关重要的作用,其可靠性对电子设备有很大的影响。本文基于模态理论利用ANSYS工具对PCB进行仿真,主要分析其定位孔和芯片布局对一阶固有频率的影响,并通过试验对芯片布局的影响进行分析。由结果可知,定位孔对一阶固有频率有很大影响,芯片布局影响的仿真和试验结果基本一致,数据可以作为后续设计的基础,并提出一些参考意见。
The reliability of PCB（printed circuit board） is so important that it will affect electronics greatly.Based on the theory of modality and applying the software ANSYS to the simulation of PCB,the influence of PCB＇s locating holes and layout of chips on the 1st-order inherent frequency was mainly analyzed,and how the layout of chips affects the frequency was discussed according to tests.It was found that the locating holes affect greatly the frequency,and the simulated influence of layout of chips is basically in agreement with the tested one.The resultant data is available to be the reference for subsequent design with some suggestions given.
出处
《真空》
CAS
北大核心
2010年第5期76-79,共4页
Vacuum
