Before revision: (1) Gold wire (2) Purple plague (3) Copper substrate (4) Gap eroded by wire-bond (5) Aluminium contact Gold–aluminium phase diagram A gold –aluminium intermetallic is an intermetallic compound of gold and aluminium that occurs at contacts between the two metals.
After revision: (1) Gold wire (2) Purple plague (3) Copper substrate (4) Gap eroded by wire-bond (5) Aluminium contact Gold–aluminium phase diagram Gold –aluminium intermetallic is a type of intermetallic compound of gold and aluminium which usually forms at contacts between the two metals.