液晶ディスプレイ実装技術の開発(第1報) : 異方性導電膜の信頼性

概要

論文の詳細を見る
A high-density mounting technology for a liquid crystal drive IC and for liquid crystal substrate has been developed to achieve high-definition liquid crystal displays. The material to join the liquid crystal drive IC and liquid crystal substrate is an anisotropic conductive film (ACF). Conventional ACFs use thermoplastic resins. The new ACF uses a thermosetting resin and has greatly improved junction reliability. The melt viscosity of the thermosetting resin is low when it is heated or pressure-joined. This facilitates intrusion of an adhesive onto the joining surface and achieves a high junction strength. The thermal expansion coefficient of the thermosetting resin is low and the thermosetting resin can be processed at the same temperature as that for conductive particles and has become a junction material with a high degree of freedom against temperature variations. The technology development reduces junction defects between the liquid crystal drive IC and liquid crystal substrate below 100ppm. At the same time, the technology allows mounting of a liquid crystal drive IC of junction pitch below 100 μm.
公益社団法人精密工学会の論文
2002-07-05