An Evaluation on the Mechanical and Conductive Performance of Electrically Conductive Film Adhesives with Glass Fabric Carriers

Abstract

Conductive assembly film adhesives are extensively employed in medical, telecom, aerospace, and defense systems. Glass fabric cloth is frequently utilized as the carrier in many film adhesives to enhance handling and processability during electronic device assembly. Furthermore, practical applications have shown that film adhesives with glass fabric carriers can bond adherends with severely mismatched coefficients of thermal expansion. However, the impact of embedding glass fabric on the overall performance of assembly films has not been systematically investigated. To address this gap in knowledge, a study was conducted to compare the performance of electrically conductive film adhesives with and without the glass fabric carriers. The study focused on the mechanical performance of the film adhesives, including lap shear strength, tensile modulus, and the ability to manage applications with mismatched coefficients of thermal expansion. Additionally, the study assessed the impact of the carrier on the electrical and thermal conductivity of the film adhesives. Overall, this integrated assessment provides insights into the effectiveness of the glass fabric carrier on the performance of film adhesives.