UT Austin Unveils New 3D Printing Method for Advanced Electronics

A research team led by The University of Texas at Austin has introduced a new 3D printing technique that could redefine how semiconductor components are designed and produced. The method, known as Holographic Metasurface Nano-Lithography (HMNL), offers a way to print chip packages and electronic structures at speeds and levels of complexity that traditional manufacturing cannot match.

Semiconductor fabrication is typically slow and expensive, relying on a long sequence of material deposition, masking, etching, and packaging steps. Each stage increases cost, limits design flexibility, and produces waste. HMNL replaces much of this workflow with a single 3D printing process that patterns advanced electronics in one pass. The technology can fabricate multi-material, three-dimensional structures that integrate metals and polymers in highly detailed geometries.

An example of the Holographic Metasurface Nano-Lithography (HMNL) method on a semiconductor.

At the center of the process are metasurfaces, ultra-thin optical masks that contain dense patterns of encoded information. When illuminated, these surfaces project holograms into a hybrid resin that solidifies into precise microstructures. Researchers say HMNL can reach features smaller than a human hair and can create forms that are impossible to achieve with step-by-step lithography. This opens the door to new component categories such as fully 3D printed capacitors, non-planar chip packages, and electronics shaped to fit robotics or aerospace systems where space is limited.