Patent ID: 6074886
Filing Date: 2000-06-13
Classification: G01R,H01L

Abstract:
Process for characterization of an insulating layer, the first surface of which covers a conducting or semiconducting surface of a substrate, the second surface of the insulating layer being electrically accessible, the characterization consisting of verifying the quality of electrical insulation presented by at least one area of the insulating layer by means of an electrical test, characterized in that it comprises the following steps:create at least one major defect in an area in the insulating layer, this major defect forming a short circuit located between the second surface of the insulating layer and the said conducting or semiconducting surface of the substrate,apply the electrical test to the area of the insulating layer to be tested by means of an electrical signal output between an electrode put into contact with the said major defect and an electrode put into contact with the said area to be tested.