Title :
Ultra low temperature curable anisotropic conductive films (ACFs) with photo latent curing behavior (PLC-ACFs)
Author :
Kim, Il ; Paik, Kyung-Wook
Author_Institution :
Dept. of Mater. Sci. & Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
Ultra low temperature curable anisotropic conductive films with photo latent curing behavior (PLC-ACFs) have been newly developed with crosslinking systems using photo acid generators as a strong cation curing agents. PLC-ACFs cannot be cured at temperature higher than 100°C before the UV exposure, and the crosslinking systems do not work in fluorescent light. However, after the UV exposure, PLC-ACFs can be cured at 100°C within 15 seconds. Flex.-on-board (FOB) assembly using PLC-ACFs showed the similar adhesion strength and joint resistances than those of the FOB assembly using conventional ACF.
Keywords :
adhesion; conducting polymers; curing; polymer films; positive ions; resins; ultraviolet radiation effects; ultraviolet spectra; visible spectra; FOB assembly; PLC-ACF; UV exposure; UV-visible light absorbance; UV-visible light transmittance; cation curing agents; crosslinking systems; flex-on-board assembly; fluorescent light; photo acid generators; photo latent curing behavior; temperature 100 degC; time 15 s; ultralow temperature curable anisotropic conductive films; Adhesives; Assembly; Curing; Fluorescence; Resins; Substrates;
Conference_Titel :
Electronics Packaging Technology Conference (EPTC), 2011 IEEE 13th
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-1983-7
Electronic_ISBN :
978-1-4577-1981-3
DOI :
10.1109/EPTC.2011.6184412
