Patent ID: 7064439
Filing Date: 2006-06-20
Classification: H01L

Abstract:
1. An integrated electrical circuit, comprising: a plurality of structure planes including at least one element structure plane; electrically active elements disposed on said at least one element structure plane; a first insulation layer disposed above said at least one element structure plane; said first insulation layer having first contact holes disposed therein, and said first contact holes being filled with a metal; a second insulation layer disposed above said first insulation layer; said second insulation layer having second contact holes disposed therein and filled with electrical connecting leads, and said second contact holes being further filled with copper in a whole-area manner; connection pieces disposed underneath said electrical connecting leads and above said first contact holes; at least one diffusion blocker disposed underneath said electrical connecting leads, said diffusion blocker at least one of impeding and preventing a diffusion of copper, said diffusion blocker configured as a blocker layer interrupted only in a region having said first contact holes formed therein, said blocker layer disposed between said first insulation layer and said second insulation layer; and said connection pieces being made of aluminum and covering said first contact holes and contacting said connection leads, and said connection pieces being covered by said second insulation layer.