Patent ID: 7666783
Filing Date: 2010-02-23
Classification: H01L

Abstract:
1. A method of contacting terminals, the method comprising; providing a substrate having a substrate surface, the substrate comprising a first terminal having a first terminal surface, and a second terminal having a second terminal surface, wherein a distance between the first terminal surface and the substrate surface is smaller than a distance between the second terminal surface and the substrate surface; forming a first insulating layer on the substrate surface and on the first and second terminal surfaces; forming a contact via in the first insulating layer for exposing the first terminal surface; filling the contact via with a conductive material; forming a second insulating layer on the first insulating layer and on the contact via filled with the conductive material; forming an etching mask on the second insulating layer, the etching mask specifying an area for the first terminal and an area for the second terminal; etching a first recess through the second insulating layer for exposing the conductive material filling the contact via, and etching a second recess through the second and first insulating layers for exposing the second terminal surface using the etching mask; introducing a conductive material into the first recess and into the second recess for producing the first and second terminals.