An interconnect for testing a semiconductor component includes a
substrate, and interconnect contacts on the substrate configured to
electrically engage component contacts on a semiconductor component. Each
interconnect contact includes a compliant conductive layer formed as a
conductive spring element. In addition, the complaint conductive layer
includes a tip for engaging the component contact and a spring segment
portion for resiliently supporting the tip. A method for fabricating the
interconnect includes the steps of shaping the substrate, forming a
conductive layer on a shaped portion of the substrate and removing at
least some of the shaped portion. The shaped portion can comprise a
raised step or dome, or a shaped recess in the substrate. The conductive
layer can comprise a metal, a conductive polymer or a polymer tape can
include a penetrating structure or penetrating particles. The
interconnect can be used to construct wafer level test systems, and die
level test systems as well, for semiconductor components such as wafers,
dice and packages.