3D electronics with volumetric additive manufacturing

Volumetric additive manufacturing (VAM) is a newly developed polymer 3D printing technique that uses tomographic projection to print all-at-once enabling objects to form orders of magnitude faster than traditional vat polymerization 3D printing methods. This technique also has the unique ability to print over top of an existing structure, a method we term overprinting. This technique has inspired the NRC to modify this technique to 3D overprint a pattern of a functional polymer overtop of an existing object and subsequently metallized the newly printed pattern to produces 3D printed conductors. This presentation will introduce volumetric additive manufacturing, highlight challenges of printing with VAM and the development of photoresins and printing requirements needed to generate high resolution 3D electronics.