TheMarangonieffectdescribesthebehaviorofliquidonthewafersurfaceresultingfromasurfacetensiongradientatthegas/liquidinterface.Thiseffectresultsinliquidonthewafersurfacebeingpulledbackintotheimmersionbathasthewaferisremovedfromthetank.BecauseIPAhasamuchlowersurfacetension(22dynes/c