Patent ID: 6452272
Filing Date: 2002-09-17
Classification: H01L

Abstract:
A semiconductor device comprising a body of insulating material, which body of insulating material has a surface to which a semiconductor element and an interconnect structure are fastened, which interconnect structure is disposed between the semiconductor element and the body of insulating material and has a superficial patterned metal layer facing the body of insulating material, which superficial patterned metal layer comprises conductor tracks, characterized in that an insulating layer having a dielectric constant âˆˆr lower than a dielectric constant âˆˆr of the body of insulating material and is disposed between the superficial patterned metal layer of the interconnect structure and the body of insulating material, and an insulating barrier layer is disposed between the semiconductor element and the insulating layer having a dielectric constant âˆˆr below 3, so as to counteract that contaminants from the insulating layer having a dielectric constant âˆˆr below 3 can reach the semiconductor element.