Electromigration in thin films of aluminium and aluminium alloys is sh
own to lead to stepwise increases of the electrical 1/f noise. These a
re attributed to the generation of highly mobile defect configurations
by a nucleation-and-growth process. It is conjectured that among them
may be the defects that are responsible for the eventual failure of V
LSI electronic devices by electromigration damage. 1/f noise promises
to be an early indicator of this damage. (C) 1996 American Institute o
f Physics.