Patent ID: 7501328

Claim:
A process for forming a multilayer three-dimensional structure, comprising: (a) forming and adhering a layer of material to a substrate, wherein the substrate may include previously formed layers; and (b) repeating the forming and adhering operation of (a) a plurality of times to build up a three-dimensional structure from a plurality of adhered layers; wherein the formation of at least one layer comprises: (i) forming a desired pattern of dielectric material on the substrate or on previously deposited material wherein the patterning of the dielectric results in at least one void in the dielectric material that exposes a portion of the substrate or previously deposited material; (ii) applying a seed layer material to the dielectric material; (iii) depositing a conductive material into the at least one void in the dielectric; and (iv) after depositing the conductive material, removing at least a portion of the seed layer material located on the dielectric material (v) selectively etching into the conductive material to form at least one second void; (vi) depositing a seed layer into the at least second void; and (vii) depositing a second conductive material into the at least one second void.