Correlation among Mechanical and Electrical Properties of Conductive Adhesive Joints

The paper is focused on investigation of correlation among changes of the resistance and nonlinearity of adhesive joints fabricated of 6 types of isotropic electrically conductive adhesives with epoxy resin binder and silver filler. Long-time static mechanical load, climatic load caused by ageing of adhesive joints at the temperature of 125degC, climatic load at the relative humidity of 100%, and combined load temperature-humidity (80degC, 80% RH) have been used for study of changes of loaded adhesive joints. Correlation among changes caused by different types of load, applied on one type of adhesive joints, has been examined. Correlation among changes caused by the same type of load, applied on different types of adhesive joints, has also been investigated. Good correlation has been found rarely. Therefore it is possible to conclude that correlation among changes caused by different types of climatic and mechanical load have not been found.