Patrik Willi Hoffmann

Expertise WettabilityMico-structuringElectron-beam DepositionPhotodepositionPhotoablationNano-optics Mission Patrik Hoffmann is heading the laboratory for Advanced Materials Processing at Empa. Laser materials processing including Additive Manufacturing are key topics in recent years.At the EPFL cite in the Laboratory for Optical Materials and Characterization LPMAT, novel functional material depositions by HV-CVD are studied. Recently BaTiO3 heteroepitaxial films have been grown on SrTiO3 buffered silicon substrates. Former experinece includes the growth of high quality LiNbO3 films and other oxides. Of German nationality, Patrik Hoffmann was born in Landau in der Pfalz in Germany in 1961.After the studies in Chemistry at Fridericiana University (Ecole Polytechnique) of Karsruhe, he obtained his diploma of chemistry in 1988. He carried out his PhD in EPFL and got docteur ès sciences in 1992 for his work on the deposition of metallic micro- and nano-structures. In 1993, he moved to research centre of IBM at Almaden in California, USA and then was employed by IBM. He moved back to EPFL in 1995 to join the Institute of Applied Optics as adjoint scientifique. He became the head of dental section and department of R&D in a German galvanic company in 1995. In March 1997, he was nominated Maître d'enseignement et de recherche (MER), specialized in techniques of microfabrication by laser at the Institute of Applied Optics of department of microtechnics in EPFL.At EPFL, Patrik Hoffmann has been teaching and doing research in an interdisciplinary way. His main research activities include resolving the concrete problems in micro- and nanostructuring of different materials by such means as lasers and electrons/ions. Since 2009 Patrik Hoffmann was nominated head of Laboratory for Avanced Materials Processing at Empa, Swiss Federal Laboratories for Materials Science and Technology. The laboratory works on laser materials processing and other advanced technologies with about 30 collaborators. In 2009 EPFL nominated Patrik Hoffmann the title adjunct professor. He is teaching in the Bachelor and Master program in Microtechnique, and in the Doctoral programs in Materials Sciences and technolgy and in Optics. In 2016 he was nominated guest professor at Nagoya Institute of Technology in Japan, and in 2017 guest professor at Shenzhen technical University in China. Education Adjunct Professor | Microtechnique 2009 – 2009 EPFL MER & EPFL | Microtechnique 1997 – 2009 EPFL Dr ês Sciences | Technical Chemistry 1988 – 1992 EPFL Directed by Erwin sz Kovats & Hubert van den Bergh Diplomchemiker | Chemistry 1988 – 1988 Karlsruhe University Directed by Professor Gerhard Hertz Professionals experiences PhD Assistant 1988–1992 EPFLPost-doc 1992–1993 IBM - Almaden Research Center San Jose, CAProject leader 1993–1995 EPFLHead of dental section 1995–1997 Gramm Technik GmbH, Tiefenbronn, Germany Head of Laboratory 2009–2009 Empa, Swiss Federal Laboratories for Materials Science and Technology Researchpublications publication list, please see empa web-pages: https://www.empa.ch/web/s204/publicationsResearch please check empa web pages for our research projects:https://www.empa.ch/web/s204/research Teaching & PhD PhD Students Umut Taylan, Camilla Minzoni Past EPFL PhD Students Frank Rüdiger Wagner, Fabio Cicoira, Estelle Wagner, Giacomo Benvenuti, Tristan Bret, Laura Barbieri, Alexandre Perentes, Vinzenz Friedli, Martin Jenke, Xavier Multone, Ali Dabirian, Laurent Bernau, Bamdad Afra, Li Wang, Sriharitha Rowthu, Fatemeh Saeidi, Michael Oliver Reinke, Marie Camille Laëtitia Le Dantec, Seth James Griffiths, Luisa Berger, Carl Tore Viktor Lindström, Marvin Schuster, Di Cui, Jacqueline Geler Kremer Courses Laser microprocessing MICRO-520 The physical principles of laser light materials interactions are introduced with a large number of industrial application examples. Materials processing lasers are developing further and further, the lecture presents the physical limitations of the processes. Materials processing with intelligent systems MICRO-457 Repeatability in laser material processing is challenging due to high-speed dynamics. To address this issue, the course provides an overview of laser theory, laser-material interaction, various types of sensors (acoustic & optic), data acquisition, online monitoring, and control via machine learning