An investigation of the mechanical behavior of conductive elastomer interconnects
Abstract This paper presents our recent study on the mechanical behavior of conductive elastomer interconnects for the assembly of land-grid-array and ball-grid-array packages. Stiffness and contact-force relaxation were measured. Taking into consideration the actual operating conditions of the sockets, the effects of both environmental temperature and initial contact force on contact-force relaxation behaviors of conductive elastomer interconnects were investigated. The results show that temperature, rather than initial contact force, correlates with the long-term relaxation behavior of conductive elastomer interconnects.