Nanowerk  May 22, 2023 The constantly shrinking critical dimension in state-of-the-art technologies requires fabrication of complex conductive structures with nanometer resolution. Electrochemical techniques can produce impurity-free metallic conductors with superb electrical and mechanical properties, however, true nanoscale resolution (<100 nm) remained unattainable. An international team of researchers (Switzerland, Singapore) employed nozzles with dimensions as small as 1 nm to demonstrate layer-by-layer manufacturing of 25 nm diameter voxels. Full control of the printing process allowed adjustment of the feature size on-the-fly, printing tilted, and overhanging structures. Based on experimental evidence, they estimated the limits of electrochemical 3D printing and discussed the […]