Patent ID: 7173318
Filing Date: 2007-02-06
Classification: H01L

Abstract:
1. A structure in a semiconductor chip, said structure comprising: a first area of a dielectric, said first area of said dielectric having a first permeability; a second area of said dielectric, said second area of said dielectric having a second permeability, said second permeability being higher than said first permeability; a permeability conversion material interspersed within said second area of said dielectric, said permeability conversion material having a third permeability, said third permeability being greater than said first and said second permeabilities; a conductor patterned in said second area of said dielectric, said permeability conversion material not being situated underneath said conductor; wherein said dielectric is not situated underneath said conductor and not situated over said conductor, wherein said first area of said dielectric is not situated underneath said second area of said dielectric and not situated over said second area of said dielectric, wherein said dielectric is a low-k dielectric, wherein said permeability conversion material is selected from the group consisting of nickel, iron, nickel-iron alloy, and magnetic oxide, wherein said conductor is selected from the group consisting of copper, aluminum, and copper-aluminum alloy, and wherein said permeability conversion material is interspersed in said second area of said dielectric by ion implantation, wherein said first area of said dielectric, said second area of said dielectric, and said conductor have a same thickness.