FEG TEM/STEM is an initiative of the Electronic Microscopy and Building Characteristics Laboratory of the Department of Physics of the Aristotle University of Thessaloniki (AUTH) in order to acquire a state-of-the-art, open access, innovative research infrastructure that will become a regional electronic microscopy platform for applied innovative research. It will cover horizontally a wide range of activities in the fields of Materials, Rural Nutrition and Textiles – RIS3 (Research and Innovation Strategy for Smart Specialisation), from the basic study and exploration of the structure of classical building materials to advanced nanotechnology materials. FEG TEM/STEM will offer access to excellence services by supplying a state-of-the-art (state-of-the-art) and unique in Greece an Electronic Microscope Transit-Scan/Transit (HM TEM/STEM) with a source of field emitting electrons (FEG) that will be supported by the existing equipment and the excellent scientific potential of the Electronic Microscopy and Structure Laboratory. The infrastructure will be immediately operational at the end of the HM installation. The superiority of HM FEG TEM/STEM over old HM technology is due to the simultaneous detection of all radiations that occur when a beam of high-energy electrons passes through a material. It allows direct observation, measurement and detailed investigation of the nanostructure of all materials, from metal coating alloys to hybrid materials and nanoparticles for emerging nanotechnology applications. The high resolution of HM FEG TEM/STEM will provide images of the individuals themselves and in 3 dimensions. An important advantage is the Scan-Transit function (STEM), which is not available in the existing infrastructure of the EMFH, and makes it suitable for analytical techniques that reveal the chemical composition of the material on the nanoscale. Therefore, structural characteristics will be directly related to the composition, quickly providing the most reliable feedback to manufacturers to optimise and certify the quality of materials and to directly link the structure characteristics to the required macroscopic physical properties. It is well known that the properties of materials on the nanoscale play an important role in future developments in innovation and global technological development. Thus properties such as the crystalline – polycrystalline or nanocrystalline structure, the type and properties of internal interfaces, the structural defects, the local chemical composition, and the understanding of the related structural mechanisms in the nanoscale, can guide the controlled production of new materials. HM FEG TEM/STEM will be a major upgrade of the existing infrastructure of EMFHY in order to develop a modern pole of excellence, a “Electronic Microscopy Centre” unique in Greece, which will contribute substantially to the Greek interdisciplinary needs of advanced research that require exploration and analysis of innovative building materials, nanomaterials and their properties, from the microscopic to the atomic scale. The new HM FEG TEM/STEM will enable the Aristotle University of Thessaloniki to maintain the advantage of innovation and competitiveness in Electronic Microscopy, the staff of EMGT to continue excelling in the training of young researchers and research internationally, and the productive bodies of the Region of Central Macedonia that are active in the fields of “Strategic Intelligent Specialisation” and in all relevant technological sectors to exploit it appropriately.