Ag wire and Ag alloy wire reliability experiments were conducted on both 28-lead SOP and 96-pin PBGA packages. Biased HAST (b-HAST) of Ag-wired packages with higher ion content molding compouds generated obvious defects promoted by ion accumulation mechanism. Intermetallic compounds (IMCs) at the corroded interface are identified using cross-sectional TEM/EDX. Ion selective affinity of intermetallic compound is rationalized using ab initio molecular dynamics simulation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.