Skip to Main Content
The electrical current density distribution at the contact between a spherical conducting particle and a flat conducting substrate was investigated using finite element analysis. As with a cylindrical constriction, the spherical particle shows non-uniform current distribution at the contact: the current is concentrated at the periphery of the contact. In practical applications, such as anisotropic conducting adhesives and ball grid arrays, the current concentration at periphery may have important implications.
Components and Packaging Technologies, IEEE Transactions on (Volume:31 , Issue: 1 )
Date of Publication: March 2008