Patent ID: 6384480
Filing Date: 2002-05-07
Classification: H01L

Abstract:
An integrated circuit comprising:a semiconductor substrate; a conductive element formed over a region of the substrate; and a conductive contact electrically connected to the conductive element, said conductive contact having a first set of substantially vertical sidewalls connected to a first set of sloping upper side edges and forming a first exterior angle greater than ninety degrees and less than one hundred eighty degrees, and a second set of substantially vertical sidewalls connected to a second set of sloping upper side edges and forming a second exterior angle greater than ninety degrees and less than one hundred eighty degrees, the first set of sloping upper side edges being connected to the second set of substantially vertical sidewalls; wherein the conductive contact fills the volume defined by said first set of substantially vertical sidewalls, said first set of sloping upper side edges, said second substantially vertical sidewalls, and said second set of sloping upper side edges; and wherein each of said first and second exterior angles are enclosed within an insulating layer.