Patent ID: 6153497
Filing Date: 2000-11-28
Classification: G01N,H01L

Abstract:
A method for determining a cause for defect formation in an insulating material layer deposited on an electrically conductive layer on a wafer surface comprising the steps of:providing a semi-conducting wafer having a first insulating layer deposited on top,depositing a second insulating layer on top of said first insulating layer, said second insulating layer being deposited in place of an electrically conductive layer,depositing a third insulating layer on top of said second insulating layer,scanning a water jet having a pressure of at least 50 kg/cm.sup.2 across a top surface of said third insulating layer in a predetermined path with said wafer held in a stationary position, andcounting defects formed in said predetermined path on said top surface of the third insulating layer.