3D copper logos printed on epoxy glass laminates are demonstrated. The structures are printed using laser transfer of molten metal microdroplets. The example in the image shows letters of 50 μm width, with each letter being taller than the last, from a height of 40 μm ('s') to 190 μm ('l'). The scanning microscopy image is taken at a tilt, and the topographic image was taken using interferometric 3D microscopy, to show the effective control of this technique.
Bibliographical noteFunding Information:
This project has received funding from the office of the Chief Scientist of Israel; Project No. 51697, “Micrometer scale, 3D Functional Printing.”
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
- 3D printing
- laser direct writing
- laser transfer
- laser-induced forward transfer
- printed electronics