Didier TONNEAU was born in Dunkerque (France) in 1960. He is Engineer of the Ecole Nationale Supérieure d’Ingénieurs Electriciens de Grenoble (ENSIEG-1984) and got his PhD in 1988 from the University of Grenoble. His PhD work concerned VLSI circuit rewiring by laser micro surgery. He has studied the laser induced deposition of conductors, semiconductors and insulators and has defined a complete metal bridging process for IC rewiring by laser, validated on CMOS circuits. Then he moved to Company BERTIN (Aix en Provence) where he was a project manager of the Physics Department. He was involved in the design and development of new equipments for microelectronics industry, such as laser microcutting tool for VLSI circuits debugging. In 1991, he moved to Solid States Physics Laboratory of Meudon, as a CNRS researcher where he worked on the physical mechanisms involved in Laser Assisted Chemical Vapour Deposition (LCVD). His study was particularly focused on LCVD of aluminium and gold. Then he joined in 1994 the Solid States Physics Group (GPEC) of University of Marseille where he worked on the fabrication of Single Electron Devices by Proximal Probe (AFM and STM) assisted lithography and on the electrical characterization of the devices. Then, in the CINaM laboratory, he worked on the fabrication of connected SiNWs by CVD of silane and in the electrical characterization of nanostructures. Now his field of interest concerns the coupling of Scanning Probe Microscopy and X-Ray Spectroscopy in order to design and fabricate new characterization tools allowing to get simultaneously the topography of a surface and its chemical mapping. He is now Professor at ‘Université de la Méditerranée’ of Marseilles and is the author of about 75 papers and 4 patents.