ACA bonding technology for low cost electronics packaging applications – current status and remaining challenges

Abstract

Anisotropically Conductive Adhesives (ACAs) have been used in electronics packaging for over a decade on glass substrates, and more recently in contactless smart‐card module assembly and for bare chip attach on flexible and rigid substrates. Summarises various technologies used in connection with ACA joining. A summary of our understanding of the electrical, thermal, physical, chemical, environmental and cost behaviours of ACAs in conjunction with various packaging applications is elaborated. Finally, future research areas and remaining issues are pointed out.