LCD驱动芯片CoF封装技术的现状及发展

摘要

The flexible packaging substrate is characterized by its flexibility, light wight and thin thickness. The CoF interconnection technology based on FPC has become the mainstream technology for LCD Drive IC. In the paper, the principium,characteristic, research status and perspective of four main interconnection methods including ACA, NCA, solderinterconnection and Au-Au Termocompression are reviewed. A possible new interconnection method and the perspective of CoF packaging are also presented.%挠性封装基板具有可弯折、重量轻、厚度薄等特点。基于挠性基板的CoF互连技术逐渐成为薄膜晶体管液晶显示屏（TFT-LCD）驱动芯片的主流封装技术。针对液晶显示系统中驱动芯片CoF封装技术的4种主要互连技术——ACA连接技术、NCA连接技术、焊料连接技术和金-金热压技术的原理、特点、研究现状和发展前景进行了总结，提出了未来CoF互连技术可能出现的新工艺和发展方向。