▎ 摘　　要

NOVELTY - Formation of three-dimensional structure involves (i) depositing a structural material through one or more nozzles onto a surface of a substrate by droplet-based freeform printing such as inkjet printing, to form one or more three- dimensional structures having a smooth surface and one or more cross-sectional dimensions. The structural material undergoes a liquid-to-solid transition after deposition and the one or more cross-sectional dimensions are controlled by a droplet ejection frequency. USE - Formation of three-dimensional structure used for forming matrix (claimed). ADVANTAGE - The method enables reducing processing times and increasing geometric resolution and smoothness of internal geometries of a solid positive matrix. The method ensures that a continuous freeform droplet-on-demand three-dimensional printing process is utilized to create smooth surfaces without striated patterns and need for support structures. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for fabrication of matrix containing the three-dimensional structure.