Patent ID: 9607928
Date: 2017-03-28
CPC Classifications: H01L

Claim:
1. A method of fabricating a component, comprising: forming a first layer structure being electrically conductive and extending within an opening in a substrate, the opening extending from a first surface of the substrate towards a second surface opposite from the first surface, the opening having an inner wall extending away from the first surface and a bottom remote from the first surface, a dielectric material being exposed at the inner wall, the first layer structure extending at least partially along the inner wall, the first layer structure contacting the dielectric material exposed at the inner wall, the first layer structure having a lower edge located between the first and second surfaces of the substrate; exposing the opening at the second surface of the substrate by processing applied to the substrate from above the second surface; forming a second layer structure in contact with the lower edge of the first layer structure and in contact with a portion of the dielectric material exposed at the inner wall, the second layer structure being electrically conductive and extending at least partially along the inner wall; and forming a principal conductor at least partially overlying the first layer structure and the second layer structure, the principal conductor being exposed at the first and second surfaces of the substrate.