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Basedontheconceptoffreevolumeingrainboundary ,aunifiedmodelfor1 fnoiseand 1 f2 noiseinmetalfilmispro posed.Itisshownfromthemodelthatthenoiseinthemetalfilmwithperfectpolycrystallinestructureappearstobe 1 ftype,while 1 f2 componentisintroducedwhenthefilmissubjectedtoacertaineletromigrationstressandthevoidsthusinduced.Itisobservedintheelectromigrationstresstestconductedbypresentauthorsthatγis1 0orsoforthemeasured 1 fγ noiseinthemetalfilmintheinitialstagesofthetest,butγabruptlyincreasedtoover1 6assoonasthevoidsareformed .Thisagreeswiththepredictionofthedevelopedmodel.
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Keywords:
- metalfilm ,1 fγ noise,electromigration,freevolume /
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