Patent ID: 8607447

Claim:
A method for providing and connecting a first contact area to at least one second contact area on a conductive substrate, in the case of a semiconductor component, the method comprising: providing at least one insulation layer on a first surface of the substrate; identifying a through contact region of the conductive substrate including the first contact area; applying at least one first metal layer on the first surface of the substrate from the through contact region to the at least one second contact area outside the through contact region, the at least one first metal layer at least partially covering the insulation layer; forming an opening in each uncovered section of the first surface of at least one insulation layer around a perimeter of the through contact region; trenching each uncovered section of the first surface of the substrate around the perimeter of the through contact region to form an insulation trench around the perimeter; selecting a trenching parameter and a width of the applied at least one first metal layer so that a complete undercutting of the substrate occurs underneath a perimeter section of the substrate covered by the at least one first metal layer during the trenching; and forming a contact hole in the insulation layer, which connects the first contact area and the second contact area to one another, in addition to the opening in the insulation layer for the insulation trench.