摘要
高精度光纤陀螺仪(FOG)的发展方向呈现集成化和小型化趋势,其核心目的在于通过结构优化实现器件微型化的同时保证测量精度的提升。文章基于系统级封装方式,将光纤陀螺信号处理电路的ADC、FPGA、DAC裸芯(DIE)通过键合线工艺集成至单一基板。针对金丝键合线的物理参数(线径、跨距、弧高)对信号完整性的极大影响,构建精细化电磁仿真模型,系统探究键合线几何参数与基板微带线宽度间的耦合效应对信号传输质量的影响机制。通过引入L9(3~4)正交试验法,对四组关键参数组合开展多目标优化分析,得到针对FOG信号处理电路的SiP键合线及基板微带线最佳组合方案,为光纤陀螺信号处理电路的系统级封装集成化提供工程实践参考。
The development of high-precision fiber optic gyroscope(FOG)shows a distinct trend toward system integration and structural miniaturization.The primary objective is to achieve device miniaturization through structural optimization while maintaining high measurement accuracy.In this study,the ADC,FPGA,and DAC dies of a FOG signal processing circuit were integrated onto a single substrate using gold wire bonding technology within a system-in-package(SiP)framework.To address the substantial impact of the physical parameters of gold bonding wires(e.g.,wire diameter,span,and arc height)on signal integrity,a high-fidelity electromagnetic simulation model was developed to systematically investigate the coupling effects between the geometric parameters of gold bonding wires and the width of substrate microstrip lines on signal transmission performance.An L9(3⁴)orthogonal experimental design was employed to conduct multiobjective optimization across four groups of critical parameter combinations,yielding an optimal configuration of SiP bonding wires and substrate microstrip lines tailored for FOG signal processing circuits.These findings provide practical guidance for SiP integration in FOG signal processing circuits and valuable insights for engineering applications.
作者
王甲强
仇海涛
贺洋
石海洋
WANG Jiaqiang;QIU Haitao;HE Yang;SHI Haiyang(Beijing Key Laboratory of High Dynamic Navigation Technology,Beijing Information Science&Technology University,Beijing 100101,CHN;Beijing Aerospace Times Optical-Electronic Technology Co.,Ltd.,Beijing 100094,CHN)
出处
《半导体光电》
北大核心
2025年第2期327-335,共9页
Semiconductor Optoelectronics
基金
国家自然科学基金项目(61703040)。
关键词
光纤陀螺仪
键合线
回波损耗
插入损耗
正交化试验
fiber optic gyroscope
bonding wire
return loss
reflection loss
orthogonal experiment
