一种嵌入式芯片封装方法及封装设备

By combining a laser etching reference coordinate system and a fiber optic sensing array in embedded chip packaging, a dynamic position compensation model and a filling path planning matrix are constructed, which solves the problems of microbump coplanarity offset and interface defects, and achieves high-precision and high-reliability chip packaging.

CN121398664BActive Publication Date: 2026-07-17GUANGDONG TAIJIN SEMICON TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG TAIJIN SEMICON TECH CO LTD
Filing Date
2025-10-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing embedded chip packaging technologies, the coplanar misalignment of microbumps under thermal stress leads to a high risk of solder joint failure. Insufficient precision of optical alignment systems and the lack of real-time monitoring and feedback mechanisms result in reduced reliability and lifespan of packaged devices.

Method used

A reference coordinate system is formed by laser etching and embedded with a fiber optic sensor array. Combined with a scanner and a micro-CT system, a dynamic position compensation model and a filling path planning matrix are constructed to achieve real-time compensation and precise control. Strain data is monitored through the fiber optic sensor array to iteratively optimize chip mounting and dispensing.

Benefits of technology

It achieves high-precision and high-reliability flip-chip packaging, effectively solving the problems of microbump coplanarity misalignment and interface defects, and improving the performance and lifespan of packaged devices.

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Abstract

本发明公开了一种嵌入式芯片的封装方法,包括在基板表面通过激光刻蚀包含编码标记的基准坐标系,同时在基板内部预嵌入光纤传感阵列,并生成与微凸块空间位置映射的初始基准数据;采用扫描仪对倒装芯片底部的微凸块进行三维形貌扫描,输出实时补偿向量集合,驱动定位平台执行芯片贴装,当监测到局部应变超过预设应变值时,触发动态位置补偿模型的迭代更新机制并生成二次补偿参数;构建对于微凸块的连接界面信息反馈至控制器,生成填充路径规划矩阵,执行底部点胶填充,形成与补偿后芯片位置相匹配的互连结构;通过视觉数据与工艺控制的深度融合,实现了高精度、高可靠性的倒装芯片封装。
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