Patent ID: 9385129
Filing Date: 2016-07-05
CPC Classification: H01L

Claim Text:
1. A method of forming a capacitor structure, comprising: providing a substrate having a plurality of capacitor electrodes formed within an insulative retaining material, the substrate further including a collar layer in contact with the plurality of capacitor electrodes; preparing a self-assembled polymer layer on the collar layer, the self-assembled polymer layer having a first domain phase-separated from a second domain; selectively removing the first domain of the self-assembled polymer layer while retaining the second domain of the self-assembled polymer layer to form an unguided, random self-assembly pattern on the substrate; and transferring the unguided, random self-assembly pattern into and through the collar layer to create a collar layer structure interconnecting the plurality of capacitor electrodes that has openings there through exposing the underlying insulative retaining material.