@inproceedings{SeligerPoganyFuerboecketal.1997, author = {Seliger, Norbert and Pogany, D. and Fuerboeck, C. and Habas, P. and Gornik, E. and Stoisiek, M.}, title = {A study of temperature distribution in SOI-smart power devices in transient conditions by optical interferometry}, series = {27th European Solid-State Device Research Conference (ESSDERC' 97)}, booktitle = {27th European Solid-State Device Research Conference (ESSDERC' 97)}, editor = {Gr{\"u}nbacher, H.}, pages = {372 -- 375}, year = {1997}, language = {en} } @incollection{SeligerFuerboeckHabasetal.1997, author = {Seliger, Norbert and Fuerboeck, C. and Habas, P. and Pogany, D. and Gornik, E.}, title = {Backside-Laserprober Technique for Characterisation of Semiconductor Power Devices}, series = {Proceedings of the Seminar Basics and Technology of Electronic Devices}, booktitle = {Proceedings of the Seminar Basics and Technology of Electronic Devices}, publisher = {Technische Hochschule Rosenheim}, pages = {143 -- 147}, year = {1997}, language = {en} } @article{SeligerHabasPoganyetal.1997, author = {Seliger, Norbert and Habas, P. and Pogany, D. and Gornik, E.}, title = {Time-Resolved Analysis of Self-Heating in Power VDMOSFETs Using Backside-Laserprobing}, series = {Solid-State Electronics}, volume = {41}, journal = {Solid-State Electronics}, number = {9}, doi = {10.1016/S0038-1101(97)00131-7}, pages = {1285 -- 1292}, year = {1997}, language = {en} } @article{FuerboeckSeligerPoganyetal.1998, author = {Fuerboeck, C. and Seliger, Norbert and Pogany, D. and Litzenberger, M. and Gornik, E. and Stecher, M. and Gosser, H. and Werner, W.}, title = {Backside laserprober characterization of thermal effects during high current stress in smart power ESD protection devices}, series = {International Electron Devices Meeting (IEDM '98) Technical Digest}, journal = {International Electron Devices Meeting (IEDM '98) Technical Digest}, doi = {10.1109/IEDM.1998.746451}, pages = {691 -- 694}, year = {1998}, language = {en} } @article{PoganySeligerGorniketal.1998, author = {Pogany, D. and Seliger, Norbert and Gornik, E. and Stoisiek, M. and Lalinsky, T.}, title = {Analysis of the temperature evolution from the time resolved thermo-optical interferometric measurements with few Fabry-Perot peaks}, series = {Journal of Applied Physics}, volume = {84}, journal = {Journal of Applied Physics}, number = {8}, doi = {10.1063/1.368674}, pages = {4495 -- 4501}, year = {1998}, language = {en} } @inproceedings{SeligerHabasGornik1995, author = {Seliger, Norbert and Habas, P. and Gornik, E.}, title = {Modeling and measurements of backside laserprobe signals in MOSFETs}, series = {European Conference on Solid-State Device Research (ESSDERC' 95)}, booktitle = {European Conference on Solid-State Device Research (ESSDERC' 95)}, editor = {de Graaf, H. C. and van Kranenburg, H.}, pages = {773 -- 776}, year = {1995}, language = {en} } @inproceedings{PoganyLalinskySeligeretal.1996, author = {Pogany, D. and Lalinsky, T. and Seliger, Norbert and Kuzmik, J. and Habas, P. and Hrkut, P. and Gornik, E.}, title = {Power Sensor Microsystems Characterization using a contactless optical laser method}, series = {International Conference on Advanced Semiconductor Devices and Microsystems (ASDAM' 96)}, booktitle = {International Conference on Advanced Semiconductor Devices and Microsystems (ASDAM' 96)}, pages = {201 -- 204}, year = {1996}, language = {en} } @inproceedings{PoganySeligerLalinskyetal.1996, author = {Pogany, D. and Seliger, Norbert and Lalinsky, T. and Kuzmik, J. and Habas, P. and Hrkut, P. and Gornik, E.}, title = {Study of thermal effects in GaAs micromachined power sensor microsystems by an optical interferometer technique}, series = {International Workshop on Thermal Investigation of ICs and Systems (THERMINIC' 96)}, booktitle = {International Workshop on Thermal Investigation of ICs and Systems (THERMINIC' 96)}, pages = {185 -- 190}, year = {1996}, language = {en} } @inproceedings{SeligerHabasGornik1996, author = {Seliger, Norbert and Habas, P. and Gornik, E.}, title = {Time Domain Characterization of lattice heating in power VDMOSFETs by means of an interferometric laserprobe technique}, series = {Proceedings of the 26th European Solid State Device Research Conference (ESSDERC' 96)}, booktitle = {Proceedings of the 26th European Solid State Device Research Conference (ESSDERC' 96)}, editor = {Baccarani, G. and Rudan, M.}, pages = {847 -- 850}, year = {1996}, language = {en} } @inproceedings{SeligerHabasKoecketal.1996, author = {Seliger, Norbert and Habas, P. and Koeck, A. and Pogany, D. and Gornik, E.}, title = {Backside laserprobing of transient heating in power VDMOSFETs}, series = {International Seminar on Power Semiconductors (ISPS)}, booktitle = {International Seminar on Power Semiconductors (ISPS)}, pages = {115 -- 122}, year = {1996}, language = {en} } @inproceedings{SeligerRacklesSchwarzbaueretal.2002, author = {Seliger, Norbert and Rackles, J. and Schwarzbauer, H. and Wolfgang, E. and Bolz, S.}, title = {Kompakte und hochzuverlaessige Aufbau- und Verbindungstechnik fuer leistungselektronische Systeme am Beispiel Starter Generator}, series = {Proceedings ECT 2002: Electronics and communications in traffic systems.}, booktitle = {Proceedings ECT 2002: Electronics and communications in traffic systems.}, editor = {Peier, D. and Hirsch, H.}, publisher = {MESAGO Messe- und Kongress-GmbH}, address = {Stuttgart (Germany)}, isbn = {3-7785-2885-8}, pages = {120 -- 128}, year = {2002}, abstract = {A compact and high-reliable converter design for an Integrated Starter Generator is presented. The concept is based on integration of the power switches with both the cooling system and the DC link capacitor, which optimizes the thermal management and minimizes inductive and conductive losses. The materials and joining technologies are selected in such a way that the converter can be operated up to 125 C ambient temperature. Therefore, the water cooling system of the combustion engine can directly be used. The paper further reports on circuit simulation results verifying the converter design and on first electrical measurements obtained on a functional prototype operating under normal load conditions (6kW rated power).}, language = {de} } @inproceedings{GerberFerreiraHofsajeretal.2003, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {High temperature, high power density packaging for automotive applications}, series = {IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03.}, booktitle = {IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03.}, publisher = {IEEE}, doi = {10.1109/PESC.2003.1218329}, pages = {425 -- 430}, year = {2003}, abstract = {The automotive industry is pushing power electronic packaging to higher operating and heatsink temperatures while still requiring very high power densities due to limited space. Currently, the power electronics that is implemented within the engine compartment of the vehicle must operate with heatsink temperatures of approximately 85/spl deg/C and this temperature can be expected to increase to 125/spl deg/C in the near future. The high temperature operation of the power electronic structure is fundamentally limited by the employed materials maximum temperatures. A packaging concept is introduced that describes a structure realisation that enables the materials to operate at high ambient temperatures without exceeding their individual maximum temperatures. This in turn allows the complete power electronic structure to operate at a higher system temperature. In this paper, the packaging concept that can be used to meet these difficult requirements of high temperature and high power-density is introduced, discussed and implemented. Two case studies are considered and implemented to illustrate the packaging concept.}, language = {en} } @inproceedings{SeligerRacklesSchwarzbaueretal.2002, author = {Seliger, Norbert and Rackles, J. and Schwarzbauer, H. and Kiffe, W. and Bolz, S.}, title = {Compact and robust power electronics packaging and interconnection technology for an Integrated Starter Generator}, series = {Optimization of the Power Train in Vehicles by Using the Integrated Starter Generator (ISG)}, booktitle = {Optimization of the Power Train in Vehicles by Using the Integrated Starter Generator (ISG)}, publisher = {expert verlag GmbH}, isbn = {9783816920779}, pages = {248 -- 255}, year = {2002}, language = {en} } @inproceedings{RacklesSeliger2003, author = {Rackles, J. and Seliger, Norbert}, title = {Optimization of DC-Link Capacitors in an Integrated Starter Generator Unit}, series = {The New Automotive 42V Power Net}, booktitle = {The New Automotive 42V Power Net}, editor = {Graf, A.}, publisher = {expert verlag}, isbn = {978-3-8169-1992-6}, year = {2003}, language = {en} } @inproceedings{FuerboeckThalhammerLitzenbergeretal.1999, author = {F{\"u}rb{\"o}ck, C. and Thalhammer, R. and Litzenberger, M. and Seliger, Norbert and Pogany, D. and Gornik, E. and Wachutka, G.}, title = {Internal Characterisation of IGBTs Using the Backside Laserprober Technique}, series = {Jahrestagung der GMe, Bad Hofgastein Tagungsband 1999}, booktitle = {Jahrestagung der GMe, Bad Hofgastein Tagungsband 1999}, publisher = {Gesellschaft f{\"u}r Mikroelektronik (GMe)}, isbn = {3-901678-04-8}, year = {1999}, language = {en} } @inproceedings{SeligerFaltlhauser2023, author = {Seliger, Norbert and Faltlhauser, Georg}, title = {Progressive Expansion Sampling of Quasi-Static Magnetic Fields for EMI Noise Detection and Equivalent Source Modeling}, series = {Proceedings EMC Europe 2023}, booktitle = {Proceedings EMC Europe 2023}, publisher = {IEEE}, address = {Krakov}, pages = {6}, year = {2023}, abstract = {We introduce a quick and accurate quasi-static magnetic field scanning technique by employing a progressive sampling method in an unconfined input space. The proposed machine learning algorithm is tested against uniform sampling on a printed circuit board test structure. We prove allocation of multiple, separated regions with predefined tangential field strengths at MHz frequencies. The feasibility of equivalent magnetic dipole source modeling based on a small number of samples is demonstrated. Compared to uniform testing, progressive expansion sampling detects contours of given field limits in less than 3\% of the reference measurement time.}, language = {en} } @article{SeligerFaltlhauser2023, author = {Seliger, Norbert and Faltlhauser, Georg}, title = {Progressive Expansion Sampling of Quasi-Static Magnetic Fields in Unconfined Regions}, series = {IEEE Transactions on Components, Packaging and Manufacturing Technology}, journal = {IEEE Transactions on Components, Packaging and Manufacturing Technology}, doi = {10.1109/TCPMT.2023.3283285}, pages = {9}, year = {2023}, abstract = {We present a fast and accurate measurement technique for quasi-static magnetic fields by employing a progressive sampling method in an unconfined input space. The proposed machine learning algorithm is tested against uniform sampling on printed circuit board test structures and a buck converter. We prove allocation of multiple, separated regions with predefined lateral field limits at MHz frequencies. The feasibility of equivalent magnetic dipole source modeling based on a small number of samples is demonstrated. Compared to uniform testing, progressive expansion sampling identifies contours of given field limits in less than 3\% of the reference measurement time.}, language = {en} } @article{GerberSeligerFerreiraetal.2006, author = {Gerber, M. and Seliger, Norbert and Ferreira, J. A. and Hofsajer, I. W.}, title = {Magnetic component miniaturisation for application in power electronic modules}, series = {4th International Conference on Integrated Power Systems}, journal = {4th International Conference on Integrated Power Systems}, pages = {1 -- 6}, year = {2006}, language = {en} } @inproceedings{GerberFerreiraHofsajeretal.2002, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {High density packaging of the passive components in an automotive DC/DC converter}, series = {2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289)}, volume = {2}, booktitle = {2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289)}, doi = {10.1109/PSEC.2002.1022545}, pages = {761 -- 767}, year = {2002}, language = {en} } @article{GerberFerreiraHofsajeretal.2002, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {A volumetric optimization of a low-pass filter}, series = {IEEE Transactions on Industry Applications}, volume = {38}, journal = {IEEE Transactions on Industry Applications}, number = {5}, issn = {1939-9367}, doi = {10.1109/TIA.2002.802996}, pages = {1432 -- 1440}, year = {2002}, language = {en} } @article{KanertDettmerPlikatetal.2003, author = {Kanert, W. and Dettmer, H. and Plikat, B. and Seliger, Norbert}, title = {Reliability aspects of semiconductor devices in high temperature applications}, series = {Microelectronics Reliability}, volume = {43}, journal = {Microelectronics Reliability}, number = {9}, issn = {0026-2714}, doi = {10.1016/S0026-2714(03)00313-5}, pages = {1839 -- 1846}, year = {2003}, language = {en} } @inproceedings{GerberFerreiraHofsajeretal.2001, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {A volumetric optimization of a low pass filter}, series = {Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248)}, booktitle = {Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248)}, publisher = {IEEE}, doi = {10.1109/IAS.2001.955934}, pages = {2224 -- 2231}, year = {2001}, language = {en} } @inproceedings{GerberFerreiraHofsajeretal.2002, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {A very high density, heatsink mounted inductor for automotive applications}, series = {Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344)}, booktitle = {Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344)}, publisher = {IEEE}, doi = {10.1109/IAS.2002.1042672}, pages = {948 -- 954}, year = {2002}, language = {en} } @article{CoqueryLefrancLichtetal.2003, author = {Coquery, G. and Lefranc, G. and Licht, T. and Lallemand, R. and Seliger, Norbert and Berg, H.}, title = {High temperature reliability on automotive power modules verified by power cycling tests up to 150°C}, series = {Microelectronics Reliability}, volume = {43}, journal = {Microelectronics Reliability}, number = {9}, issn = {0026-2714}, doi = {10.1016/S0026-2714(03)00318-4}, pages = {1871 -- 1876}, year = {2003}, language = {en} } @article{CastellazziKartalKrausetal.2003, author = {Castellazzi, A. and Kartal, V. and Kraus, R. and Seliger, Norbert and Honsberg-Riedl, M. and Schmitt-Landsiedel, D.}, title = {Hot-Spot Meaurements and Analysis of Electro-Thermal Effects in Low-Voltage Power-MOSFET's}, series = {Microelectronics Reliability}, volume = {43}, journal = {Microelectronics Reliability}, number = {9}, issn = {0026-2714}, doi = {10.1016/S0026-2714(03)00319-6}, pages = {1877 -- 1882}, year = {2003}, language = {en} } @article{CastellazziKrausSeligeretal.2002, author = {Castellazzi, A. and Kraus, R. and Seliger, Norbert and Schmitt-Landsiedel, D.}, title = {Reliability analysis of power MOSFET's with the help of compact models and circuit simulation}, series = {Microelectronics Reliability}, volume = {42}, journal = {Microelectronics Reliability}, number = {9}, issn = {0026-2714}, doi = {10.1016/S0026-2714(02)00198-1}, pages = {1605 -- 1610}, year = {2002}, language = {en} } @article{RammingerSeligerWachutka2000, author = {Ramminger, S. and Seliger, Norbert and Wachutka, G.}, title = {Reliability model for Al wire bonds subjected to heel crack failures}, series = {Microelectronics Reliability}, volume = {40}, journal = {Microelectronics Reliability}, number = {8}, issn = {0026-2714}, doi = {10.1016/S0026-2714(00)00139-6}, pages = {1521 -- 1525}, year = {2000}, language = {en} } @article{FuerboeckLitzenbergerPoganyetal.1999, author = {F{\"u}rb{\"o}ck, C. and Litzenberger, M. and Pogany, D. and Gornik, E. and Seliger, Norbert and M{\"u}ller-Lynch, T. and Stecher, M. and Goßner, H. and Werner, W.}, title = {Laser interferometric method for ns-time scale thermal mapping of Smart Power ESD protection devices during ESD stress}, series = {Microelectronics Reliability}, volume = {39}, journal = {Microelectronics Reliability}, number = {6}, issn = {0026-2714}, doi = {10.1016/S0026-2714(99)00124-9}, pages = {925 -- 930}, year = {1999}, language = {en} } @article{PoganySeligerLitzenbergeretal.1999, author = {Pogany, D. and Seliger, Norbert and Litzenberger, M. and Gossner, H. and Stecher, M. and M{\"u}ller-Lynch, T. and Werner, W. and Gornik, E.}, title = {Damage analysis in smart-power technology electrostatic discharge (ESD) protection devices}, series = {Microelectronics Reliability}, volume = {39}, journal = {Microelectronics Reliability}, number = {6}, issn = {0026-2714}, doi = {10.1016/S0026-2714(99)00162-6}, pages = {1143 -- 1148}, year = {1999}, language = {en} } @article{SeligerWolfgangLefrancetal.2002, author = {Seliger, Norbert and Wolfgang, E. and Lefranc, G. and Berg, H. and Licht, T.}, title = {Reliable power electronics for automotive applications}, series = {Microelectronics Reliability}, volume = {42}, journal = {Microelectronics Reliability}, number = {9-11}, issn = {0026-2714}, doi = {10.1016/S0026-2714(02)00197-X}, pages = {1597 -- 1604}, year = {2002}, language = {en} } @inproceedings{WolfgangSeligerLugertetal.2002, author = {Wolfgang, E and Seliger, Norbert and Lugert, G and Riepl, T}, title = {High-temperature power electronics: challenges and opportunities}, series = {Proceedings of the 2nd International Conference on Integrated Power Systems (CIPS)}, booktitle = {Proceedings of the 2nd International Conference on Integrated Power Systems (CIPS)}, pages = {43 -- 51}, year = {2002}, language = {en} } @inproceedings{OilaCiappaSeligeretal.2003, author = {Oila, Kari and Ciappa, Mauro and Seliger, Norbert and Fichtner, Wolfgang}, title = {Computer assisted thermal design of an integrated starter generator and model assessment under realistic operating conditions}, series = {International Workshop on Thermal Investigation of ICs and Systems (THERMINIC)}, booktitle = {International Workshop on Thermal Investigation of ICs and Systems (THERMINIC)}, isbn = {978-2-84813-020-0}, pages = {107 -- 112}, year = {2003}, language = {en} } @inproceedings{OilaCiappaSeligeretal.2003, author = {Oila, K. and Ciappa, M. and Seliger, Norbert and Fichtner, W.}, title = {Thermal Modeling, Simulation and Characterization of a High-Temperature Converter for Automotive Applications}, series = {Proc. 10th European Conference on Power Electronics and Applications, EPE}, volume = {10}, booktitle = {Proc. 10th European Conference on Power Electronics and Applications, EPE}, year = {2003}, language = {en} } @inproceedings{CastellazziKrausSeligeretal.2003, author = {Castellazzi, A. and Kraus, R. and Seliger, Norbert and Schmitt-Landsiedel, D.}, title = {Influence of parasitic inductances on the switching behaviour of Power MOSFETs used in automotive applications}, series = {Proc. 10th European Conference on Power Electronics and Applications, EPE}, volume = {10}, booktitle = {Proc. 10th European Conference on Power Electronics and Applications, EPE}, year = {2003}, language = {en} } @inproceedings{FuerboeckThalhammerLitzenbergeretal.1999, author = {F{\"u}rb{\"o}ck, C. and Thalhammer, R. and Litzenberger, M. and Seliger, Norbert and Pogany, D. and Gornik, E. and Wachutka, G.}, title = {A differential backside laserprobing technique for the investigation of the lateral temperature distribution in power devices}, series = {11th International Symposium on Power Semiconductor Devices and ICs. ISPSD'99 Proceedings}, booktitle = {11th International Symposium on Power Semiconductor Devices and ICs. ISPSD'99 Proceedings}, publisher = {IEEE}, doi = {10.1109/ISPSD.1999.764095}, pages = {193 -- 196}, year = {1999}, language = {en} } @inproceedings{SeligerRammingerFrankeetal.2000, author = {Seliger, Norbert and Ramminger, S. and Franke, T. and Wachutka, G.}, title = {A study of heel crack failures in wire bonds under mechanical cycling}, series = {Proceedings of Micromat 2000}, booktitle = {Proceedings of Micromat 2000}, year = {2000}, language = {en} } @inproceedings{FuerboeckPoganyLitzenbergeretal.1999, author = {F{\"u}rb{\"o}ck, C. and Pogany, D. and Litzenberger, M. and Gornik, E. and Seliger, Norbert and Gossner, H. and M{\"u}ller-Lynch, T. and Stecher, M. and Werner, W.}, title = {Interferometric temperature mapping during ESD stress and failure analysis of smart power technology ESD protection devices}, series = {Electrical Overstress/Electrostatic Discharge Symposium Proceedings}, booktitle = {Electrical Overstress/Electrostatic Discharge Symposium Proceedings}, publisher = {IEEE}, doi = {10.1109/EOSESD.1999.819067}, pages = {241 -- 250}, year = {1999}, language = {en} } @article{FuerboeckPoganyLitzenbergeretal.2000, author = {F{\"u}rb{\"o}ck, C. and Pogany, D. and Litzenberger, M. and Gornik, E. and Seliger, Norbert and Gossner, H. and M{\"u}ller-Lynch, T. and Stecher, M. and Werner, W.}, title = {Interferometric temperature mapping during ESD stress and failure analysis of smart power technology ESD protection devices}, series = {Journal of Electrostatics}, volume = {49}, journal = {Journal of Electrostatics}, pages = {195 -- 213}, year = {2000}, language = {en} } @inproceedings{GerstenmaierWachutkaSeliger2002, author = {Gerstenmaier, Y.C. and Wachutka, G. and Seliger, Norbert}, title = {Efficient calculation of transient temperature fields responding to fast changing heatsources over long duration in high frequency DC/DC converter}, series = {Proceedings of THERMINIC}, booktitle = {Proceedings of THERMINIC}, pages = {297 -- 302}, year = {2002}, language = {en} } @inproceedings{RenkenEhbauerKarreretal.2007, author = {Renken, F. and Ehbauer, G. and Karrer, V. and Knorr, R. and Ramminger, S. and Seliger, Norbert and Wolfgang, E.}, title = {Reliability of high temperature inverters for HEV}, series = {Proceedings Power Conversion Conference}, booktitle = {Proceedings Power Conversion Conference}, publisher = {IEEE}, address = {Nagoya}, doi = {10.1109/PCCON.2007.373022}, pages = {563 -- 568}, year = {2007}, language = {en} } @article{GerberFerreiraSeligeretal.2005, author = {Gerber, M. and Ferreira, J.A. and Seliger, Norbert and Hofsajer, I.W.}, title = {Integral 3-D thermal, electrical and mechanical design of an automotive DC/DC converter}, series = {IEEE Transactions on Power Electronics}, volume = {20}, journal = {IEEE Transactions on Power Electronics}, number = {3}, publisher = {IEEE}, pages = {566 -- 575}, year = {2005}, language = {en} } @article{GerberFerreiraSeligeretal.2005, author = {Gerber, M. and Ferreira, J.A. and Seliger, Norbert and Hofsajer, I.W.}, title = {High density packaging of the passive components in an automotive DC/DC converter}, series = {IEEE Transactions on Power Electronics}, volume = {20}, journal = {IEEE Transactions on Power Electronics}, number = {2}, publisher = {IEEE}, pages = {268 -- 275}, year = {2005}, language = {en} } @inproceedings{GerberFerreiraSeligeretal.2005, author = {Gerber, M. and Ferreira, J.A. and Seliger, Norbert and Hofsajer, I.W.}, title = {Design and evaluation of an automotive integrated system module}, series = {Conference Record of the 2005 Industry Applications Conference}, booktitle = {Conference Record of the 2005 Industry Applications Conference}, publisher = {IEEE}, pages = {1144 -- 1151}, year = {2005}, language = {en} } @inproceedings{GerberFerreiraHofsajeretal.2005, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {Integral design of a high power density DC/DC converter for harsh environments}, series = {European Conference on Power Electronics and Applications}, booktitle = {European Conference on Power Electronics and Applications}, publisher = {IEEE}, year = {2005}, language = {en} } @inproceedings{GerberFerreiraHofsajeretal.2004, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {Interleaving optimization in synchronous rectified DC/DC converters}, series = {IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551)}, booktitle = {IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551)}, publisher = {IEEE}, pages = {4655 -- 4661}, year = {2004}, language = {en} } @inproceedings{GerberFerreiraHofsajeretal.2004, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {An improved 3D integrated DC/DC converter for high temperature environments}, series = {IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551)}, booktitle = {IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551)}, publisher = {IEEE}, pages = {2779 -- 2785}, year = {2004}, language = {en} } @inproceedings{RoehrichHirschSeliger2004, author = {R{\"o}hrich, A. and Hirsch, H. and Seliger, Norbert}, title = {EMC-optimised design of a converter power stage by reduction of surface currents}, series = {IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551)}, booktitle = {IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551)}, publisher = {IEEE}, pages = {82 -- 85}, year = {2004}, language = {en} } @article{GerberFerreiraHofsajeretal.2004, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {A high-density heat-sink-mounted inductor for automotive applications}, series = {IEEE Transactions on Industry Applications}, volume = {40}, journal = {IEEE Transactions on Industry Applications}, number = {4}, publisher = {IEEE}, pages = {1031 -- 1038}, year = {2004}, language = {en} } @inproceedings{WolfgangLefrancSeligeretal.2002, author = {Wolfgang, E. and Lefranc, G. and Seliger, Norbert and Berg, H. and Licht, T.}, title = {Zuverl{\"a}ssige Leistungselektronik f{\"u}r die Automobiltechnik}, series = {ETG-Tagung Bauelemente der Leistungselektronik und ihre Anwendungen}, booktitle = {ETG-Tagung Bauelemente der Leistungselektronik und ihre Anwendungen}, publisher = {ETG}, address = {Bad Nauheim}, year = {2002}, language = {de} } @inproceedings{RoehrichHirschSeliger2002, author = {R{\"o}hrich, A. and Hirsch, H. and Seliger, Norbert}, title = {Built-in EMC in der Aufbau- und Verbindungstechnik am Beispiel des integrierten Startergenerators}, series = {Proceedings Electronic \& Communications in Traffic Systems (ECT'02)}, booktitle = {Proceedings Electronic \& Communications in Traffic Systems (ECT'02)}, year = {2002}, language = {de} } @inproceedings{RoehrichHirschSeliger2002, author = {R{\"o}hrich, A. and Hirsch, H. and Seliger, Norbert}, title = {EMC modeling of a compact packaging technology of a crankshaft starter generator}, series = {International Conference of Electromagnetic Compatibility (ICEMC 2002)}, booktitle = {International Conference of Electromagnetic Compatibility (ICEMC 2002)}, year = {2002}, language = {en} } @inproceedings{HirschRoehrichSeliger2004, author = {Hirsch, H. and R{\"o}hrich, A. and Seliger, Norbert}, title = {EMV-optimierter Entwurf durch gezielte Reduktion von Oberfl{\"a}chenstr{\"o}men}, series = {12. Internationale Fachmesse und Kongress f{\"u}r Elektromagnetische Vertr{\"a}glichkeit}, booktitle = {12. Internationale Fachmesse und Kongress f{\"u}r Elektromagnetische Vertr{\"a}glichkeit}, publisher = {VDE-Verlag GmbH}, address = {D{\"u}sseldorf}, isbn = {3-8007-2810-9}, pages = {689 -- 696}, year = {2004}, language = {de} } @inproceedings{GerberFerreiraHofsajeretal.2002, author = {Gerber, M. and Ferreira, J.A. and Hofsajer, I.W. and Seliger, Norbert}, title = {A high power density DC/DC converter for automotive applications}, series = {SAUPEC 2002 Proceedings of the Eleventh Southern African Universities Power Engineering Conference}, booktitle = {SAUPEC 2002 Proceedings of the Eleventh Southern African Universities Power Engineering Conference}, publisher = {IEEE}, pages = {6}, year = {2002}, language = {en} } @inproceedings{SeligerHonsa2023, author = {Seliger, Norbert and Honsa, Johannes}, title = {Time-variable Mutual Inductance for Enhanced Inductive Power Transmission}, series = {Proceedings International Symposium on Fundamentals of Electrical Engineering 2023 (ISFEE 2023)}, booktitle = {Proceedings International Symposium on Fundamentals of Electrical Engineering 2023 (ISFEE 2023)}, publisher = {IEEE}, address = {Bucharest, Romania}, isbn = {979-8-3503-0856-3}, doi = {10.1109/ISFEE60884.2023.10637204}, pages = {5}, year = {2023}, abstract = {Enhanced inductive power transmission (IPT) between coaxially arranged circular coils is introduced by time-modulation of the mutual inductance. This modulation is accomplished by coherent switching of the short circuit current induced in a third loop. An analytical circuit model supporting the design for future time-modulated IPT systems is derived. We demonstrate an increase in load rms-voltage by 13\% (28\% gain in power) compared to an unmodulated transfer on an experimental system operating at fundamental frequencies ranging from 40kHz to 500kHz.}, language = {en} } @inproceedings{SeligerHelmbrecht2024, author = {Seliger, Norbert and Helmbrecht, Cordula}, title = {A high-frequency performance and degradation study of adhesive conductive EMI shielding tapes during High-Temperature Storage}, series = {Proccedings CIPS 2024 - 13th International Conference on Integrated Power Electronics Systems}, booktitle = {Proccedings CIPS 2024 - 13th International Conference on Integrated Power Electronics Systems}, publisher = {VDE VERLAG GMBH}, address = {D{\"u}sseldorf}, isbn = {978-3-8007-6288-0}, issn = {0341-3934}, pages = {297 -- 303}, year = {2024}, abstract = {The variation of the contact impedance of adhesive conductive EMI shielding tapes under high temperature storage (HTS) of 110degC is investigated. The adhesive tapes under test are implemented as signal return paths in microstrip lines. Changes in the ground plane impedance by adhesive deterioration are analyzed by S-parameter measurements from 1MHz to 3GHz. A circuit model for contact impedance degradation is proposed and applied in simulation of board level shielding. Contact resistance and contact capacitance are found to increase significantly after 2400h, causing a declined magnetic field shielding effectiveness by 30 dB below 500 MHz.}, language = {en} } @inproceedings{SeligerHonsa2023, author = {Seliger, Norbert and Honsa, Johannes}, title = {A Planar Magneto-Inductive Device with Modulated Mutual Inductance for Wireless Power Transmission}, series = {2023 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)}, booktitle = {2023 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)}, publisher = {IEEE}, address = {Venice (Italy)}, isbn = {979-8-3503-2060-2}, issn = {2766-287X}, doi = {10.1109/APWC57320.2023.10297488}, pages = {26 -- 31}, year = {2023}, abstract = {A Magneto-Inductive Wave (MIW) structure for wireless power transfer (WPT) is proposed with switchable mutual inductance between neighbored coupling coils. Orthogonally placed switchable short circuit loops are added in order to modulate the wave propagation properties of the MIW structure without changing the resonance frequency. We derive an analytical model based on lumped circuit analysis for the MIW waveguide and successfully evaluate the theoretical findings by circuit modeling and field simulation. We demonstrate switchable, i.e. addressable, guided wireless power transfer along an experimental MIW structure at a resonance frequency of 20.5 MHz.}, language = {en} } @inproceedings{Seliger2024, author = {Seliger, Norbert}, title = {Reconfigurable Polygonal Planar Inductor with Bistable Snapping Mechanism}, series = {2024 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), Vilnius, Lithuania}, booktitle = {2024 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), Vilnius, Lithuania}, isbn = {979-8-3503-5241-2}, issn = {2690-8506}, doi = {10.1109/eStream61684.2024.10542595}, pages = {1 -- 6}, year = {2024}, abstract = {A mechanically tunable planar single-turn inductor in air is proposed. The bistable flexible deflection of axially compressed wire segments is used for variation of the loop area of regular polygonal loop inductors. We present analytical expressions for the loop inductance and confirm the theoretical findings by magneto-quasi-static field simulation on exemplary polygonal circuits.}, language = {en} } @inproceedings{Seliger2024, author = {Seliger, Norbert}, title = {A Tunable Wire Loop Inductor based on Bistable Compliant Mechanism}, series = {25th International Microwave and Radar Conference (MIKON)}, booktitle = {25th International Microwave and Radar Conference (MIKON)}, publisher = {IEEE, Warsaw University of Technology}, address = {Wroclaw, Poland}, isbn = {978-83-969726-0-6}, doi = {10.23919/MIKON60251.2024.10633977}, pages = {209 -- 214}, year = {2024}, abstract = {By axially loading of a cylindrical wire we utilize the first order buckling mode to form the shape of a segment of a wire loop inductor. The shape of the deformed wire is expressed in analytical form and provides the basis for a semi-empirical formulation of the loop inductance. Combining several buckling segments and taking advantage of the snap-through behavior of such a segment, the shape of the wire loop in air and hence the loop inductance can be varied mechanically on purpose. The analytical model for the tunable inductance enables a design methodology for bistable compliant inductors. We present two designs of mechanically tuned inductors in the range from 20nH to 50nH. Furthermore the electromagnetic properties of the proposed innovative components are confirmed by method of moments numerical modeling based on quasi-static magnetic fields and by experiment. We finally show that the design process is applicable to regular plane polygonal inductors representing multi-stable compliant stages.}, language = {en} } @inproceedings{SeligerLeirich2024, author = {Seliger, Norbert and Leirich, Nico}, title = {Compliant Mechanism based Planar Inductors for Reconfigurable Magneto-Inductive Wave Devices}, series = {18th International Congress on Artificial Materials for Novel Wave Phenomena - Metamaterials 2024}, booktitle = {18th International Congress on Artificial Materials for Novel Wave Phenomena - Metamaterials 2024}, publisher = {IEEE}, address = {Crete}, isbn = {979-8-3503-7349-3}, doi = {10.1109/Metamaterials62190.2024.10703322}, pages = {X-243 -- X-245}, year = {2024}, abstract = {A reconfigurable planar inductor based on bistable compliant mechanism is proposed. Flexible snapping of wire elements is used for modification of the loop area and self inductance as well as for the mutual coupling between laterally arranged multiple inductors in a magneto-inductive wave (MIW) device. A mechanical model is presented building the basis for an analytical inductance model. The bistable reconfigurability is demonstrated experimentally and confirmed by numerical simulation results.}, language = {en} } @inproceedings{SeligerLeirich2024, author = {Seliger, Norbert and Leirich, Nico}, title = {Reconfigurable Board-to-Board Interconnect Utilizing Bistable Compliant Ribbon Wires}, series = {14th International Workshop on the Electromagnetic Compatibility of Integrated Circuits (EMC Compo)}, booktitle = {14th International Workshop on the Electromagnetic Compatibility of Integrated Circuits (EMC Compo)}, publisher = {IEEE}, address = {Turin}, isbn = {979-8-3315-0462-5}, doi = {10.1109/EMCCompo61192.2024.10742066}, pages = {211 -- 215}, year = {2024}, abstract = {We propose a printed circuit board (PCB) interconnection utilizing elastically deformed ribbon wires. The wire deflection is designed as a bistable snapping mechanism, which enables post-assembly tuning of the geometry. Hence, a reconfigurable inductance is obtained, easing impedance matching and supporting signal integrity. Analytical solutions for partial and mutual inductance of buckled wires are developed, which are successfully validated by magneto-quasistatic field simulations and by experiments on a test structure for frequencies ranging from 100kHz to 100MHz. We demonstrate a tunable loop inductance from 25nH to 50nH at 10MHz.}, language = {de} } @inproceedings{PueschelSeliger2025, author = {P{\"u}schel, Maximilian and Seliger, Norbert}, title = {Multiple-Frequency Three Coil Inductive Power Transmission with Non-Linear Relay Resonator}, series = {Proceedings Southeastcon 2025}, booktitle = {Proceedings Southeastcon 2025}, publisher = {IEEE}, isbn = {979-8-3315-0484-7}, issn = {1558-058X}, doi = {10.1109/SoutheastCon56624.2025.10971670}, pages = {34 -- 39}, year = {2025}, abstract = {We propose near-field inductive power transfer with three coils in the frequency range of a few MHz. The relay coil is part of a non-linear resonator having a diode connected in parallel to the resonant capacitor. We achieve power transfer at multiple frequencies which can be tuned by the input power level and mutual coupling between the coils. Higher harmonic generation is found dominant at lower input power, whereas subharmonic generation (period doubling and period quadrupling) is observed at high levels. Power transfer at subharmonics reveals robustness against level perturbations due to pronounced amplitude hysteresis effect. A circuit simulation based on standard non-linear diode SPICE models confirms the experimental results which are obtained on a demonstration prototype.}, language = {en} } @inproceedings{YilmazMariAsametal.2025, author = {Yilmaz, Tugce and Mari, Jorge and Asam, Johann and Kirner, Michael and List, Andreas and Fantauzzo, Lucia and Seliger, Norbert}, title = {AC Cycling Testing of SiC MOSFET Power Module}, series = {Proccedings International exhibition and conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM 2025)}, booktitle = {Proccedings International exhibition and conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM 2025)}, publisher = {VDE VERLAG GMBH}, address = {Berlin}, isbn = {978-3-8007-6541-6}, doi = {10.30420/566541341}, pages = {2562 -- 2567}, year = {2025}, abstract = {This paper details the development of an accelerated AC cycling test bench for evaluating the aging mechanisms of SiC MOSFET power modules. Contrary to classical HTGS and DGS which only exercise gate source stresses the AC Cycler switched under high voltage and current. Operating for about 235 hours, the system maintained stable thermal conditions thanks to an integrated cooling system. Key precursors of aging, such as increases in threshold voltage and on-state resistance were identified using static characterization curve tracer before and after the test. Gate charge and Vdson were also measured on-line with specially developed gate drivers.}, language = {en} } @inproceedings{Seliger2025, author = {Seliger, Norbert}, title = {Introducing Environmental Sustainability in an RF and EMC Lab Course Utilizing Reusable, Recyclable and Biodegradable Circuits}, series = {Proceedings IEEE educon 2025}, booktitle = {Proceedings IEEE educon 2025}, publisher = {IEEE}, doi = {10.1109/EDUCON62633.2025.11016365}, pages = {9}, year = {2025}, abstract = {We propose to introduce environmental sustainability in a radio frequency (RF) and electromagnetic compatibility (EMC) laboratory course for an electrical engineering bachelor's program utilizing reusable, easily recyclable and ecologically harmless (biodegradable) circuits. Our concept is based on the replacement of state-of-the-art printed circuit boards by substrates with mechanically structured adhesive Cu and Zinc films. Furthermore, organic based circuit carriers can be substituted by biodegradable paper substrates. As an example for the RF lab, we discuss the design, simulation and experimental characterization of a microwave low-pass filter with 1.2GHz cut-off frequency. Secondly, for an EMC lab we suggest a prototype for power integrity (PI) studies based on the current imbalance method for reducing common mode radiated emission. As a novel feature during the lab course, the instructor in addition gives a lecture highlighting the electronic waste challenge, which is accompanied by group discussions on sustainability and recycling. As a final lab course task students are asked to disassemble the boards or prepare them for reuse, followed by material sorting and submission to recycling institutions.}, language = {en} } @inproceedings{SeligerLeirich2025, author = {Seliger, Norbert and Leirich, Nico}, title = {Reconfigurable single-layer air coil inductor with bistable compliant windings}, series = {Proceedings EPE 25}, booktitle = {Proceedings EPE 25}, publisher = {EPE Association}, doi = {10.34746/epe2025-0012}, pages = {10}, year = {2025}, abstract = {We present an air coil with bistable compliant single layer windings. Due to stable elastic snapping deformation of wire segments, the self-inductance of the air coil can be precisely varied in multiple steps. A numerical and analytical design methodology is proposed and successfully validated by magneto-quasi-static field simulations and experiments on prototypes.}, language = {en} } @misc{HelbigSeliger2025, author = {Helbig, Michael and Seliger, Norbert}, title = {Combinatorics of Inductance States in Reconfigurable Air Coils}, series = {Proceedings 2nd International Conference on Recent Advances in Mathematics and Informatics (ICRAMI'25)}, journal = {Proceedings 2nd International Conference on Recent Advances in Mathematics and Informatics (ICRAMI'25)}, isbn = {978-9909-00-770-9}, pages = {8}, year = {2025}, abstract = {We propose a group theory based mathematical model for unambiguous inductance states of a reconfigurable air coil inductor utilizing elastic snapping of wire segments. Vertical (axial) and horizontal winding symmetries under group actions reveal distinguishable tuning regions and individual variation states therein. The model is applied to coils of prismatic (cylinder like) and truncated pyramidal (conical like) shape with edges forming a regular polygon as basis, and verified by numerical magnet field simulation.}, language = {en} }