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  • 1.
    Ahmadkhaniha, D.
    et al.
    Jönköping University, Sweden.
    Eriksson, F.
    Linköping University, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics. Jönköping University, Sweden.
    Zanella, C.
    Jönköping University, Sweden.
    Effect of SiC particle size and heat-treatment on microhardness and corrosion resistance of NiP electrodeposited coatings2018In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 769, p. 1080-1087Article in journal (Refereed)
    Abstract [en]

    Electrodeposition of NiP composite coatings with nano and sub-micron sized SiC has been carried out to investigate the possibility of replacing hard chromium coatings. The composition and structure of the coatings were evaluated by energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analysis, respectively. Microhardness was measured by Vickers indentation and polarization measurements were carried out to study the corrosion behavior of the coatings. The results showed that submicron particles can be codeposited with a higher content as compared to nano sized ones. However, even if a smaller amount of the nano-sized SiC particles are incorporated in the coating, the contribution to an increasing microhardness was comparable with the submicron sized particles, which can be related to the higher density of codeposited particles. SiC particles did not change the anodic polarization behavior of NiP coatings in a 3.5% NaCl solution. Finally, the effect of heat-treatment on the coatings properties at 400 °C for 1 h was studied to investigate the contribution of particles and heat-treatment on hardness and corrosion properties. It was found that the heat-treatment doubled the microhardness and changed the anodic polarization behavior of the coatings from passive to active with respect to the as-plated conditions.

  • 2.
    Ahmadkhaniha, Donya
    et al.
    Jönköping University, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics. Jönköping University, Sweden.
    Zanella, Caterina
    Jönköping University, Sweden.
    Pinate, Santiago
    Jönköping University, Sweden.
    Electrodeposition of Ni high P composite coatings containing nano and submicron ceramic particles2017Conference paper (Refereed)
  • 3.
    Ahmadkhaniha, Donya
    et al.
    Jönköping University, Sweden.
    Pinate, S.
    Jönköping University, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics. Jönköping University, Sweden.
    Zanella, C.
    Jönköping University, Sweden.
    Electrodeposition of Ni high P composite coatings containing nano and submicro ceramic particles2017In: EUROCORR 2017 - The Annual Congress of the European Federation of Corrosion, 20th International Corrosion Congress and Process Safety Congress 2017, Czech Association of Corrosion Engineers , 2017Conference paper (Refereed)
    Abstract [en]

    In this study, electrodeposition of Ni-P composite coatings has been carried out to investigate the possibility of replacing hard chromium coatings. Therefore, electrodeposition of Ni-P based composite coating with different SiC particle size (50 nm, 100 nm and 500 nm) or B4C (500 nm) was performed. The coating's composition was evaluated by energy dispersive spectroscopy (EDS), microhardness of the coatings was measured by Vickers indentor and polarization measurements were carried out to study the corrosion behavior of the coatings. The results showed that B4C particles can codeposit in higher percent respect to SiC ones. Ceramic particles increased microhardness of Ni-P coatings to 700HV0.01. The polarization behavior of all the coatings in 3.5% NaCl was similar in as plated state proving that particles did not hindered the passive behaviour. Finally, the effect of heat-treatment (at 400 ºC for 1 hour) on the coating's properties was studied to compare the contribution of particles and heat-treatment on mechanical and corrosion properties of the coatings. Heat-treatment increased the coating's microhardness and changed the anodic polarization behavior of the coatings respect to the as plated conditions. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved.

  • 4. Belov, I
    et al.
    Rydén, J
    Lindblom, J
    Zhang, Y
    Hansson, T
    Bergner, F
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Application fo CFD Medelling for Energy Efficient Humidity Management of an Electronics Enclosure in Storage under Severe Climatic conditions2008Conference paper (Refereed)
  • 5.
    Belov, Ilia
    et al.
    Jönköping University, Sweden.
    Arwidson, Jonas
    Saab AB, Sweden.
    Poder, Ralf
    RISE - Research Institutes of Sweden.
    Johannesson, Pär
    RISE - Research Institutes of Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden. Jönköping University, Sweden.
    Thermal fatigue prediction: consequences of cycle reduction and material property variation2016In: Electronic Environment, 2016, Vol. 1, p. 27-27Conference paper (Refereed)
  • 6.
    Belov, Ilia
    et al.
    Jönköping University, Sweden.
    Lang, Jenny
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Hellén, Johan
    Saab AB, Sweden.
    Lim, Jang-Kwon
    RISE, Swedish ICT, Acreo.
    Schødt, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Nilsson, Torbjörn M. J.
    Saab AB, Sweden.
    Poder, Ralf
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Bakowski, Mietek
    RISE, Swedish ICT, Acreo.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Reliability study of GaN HEMTs2016Conference paper (Other academic)
  • 7.
    Belov, Ilia
    et al.
    Jönköping University, Sweden.
    Nordh, Andreas
    Zigrid AB, Sweden.
    Salomonsson, Kent
    Jönköping University, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics. Jönköping University, Sweden.
    Fin‐Tube and Plate Heat Exchangers – Evaluation ofTransient Performance2017Conference paper (Refereed)
  • 8.
    Belov, Ilia
    et al.
    Jönköping University, Sweden.
    Payandeh, Mustafa
    Jönköping University, Sweden.
    Jarfors, Anders E. W.
    Jönköping University, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden. Jönköping University, Sweden.
    Wessén, Magnus
    Jönköping University, Sweden.
    Effect of fillets on heat transfer in a rheocast aluminium heatsink2016In: 2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2016, article id 7463320Conference paper (Refereed)
    Abstract [en]

    The effect of fillets formed between the base and plate fins of rheocast aluminium heatsinks on the thermal resistance of the heatsinks has been quantified by simulation. Simulation methodology, including sequential optimization has been developed in order to determine hotspot distributions where the fillets have the maximum effect. Combination of different fillet dimensions with various base thickness levels and aluminium alloys having inhomogeneous thermal conductivity have been investigated. For the studied cases, the effect of fillets on heatsink thermal resistance differs from negligible to 6%. The results would guide thermal designers on contribution of fillets to the heat transfer in multi-fin heatsinks for natural convection.

  • 9.
    Belov, Ilia
    et al.
    Jönköping University, Sweden.
    Zanella, Caterina
    Jönköping University, Sweden.
    Edström, Curt
    Jönköping University, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden. Jönköping University, Sweden.
    Simulation based investigation of silver plating process parameters and their effect on throwing power2015In: EAST Forum 2015, 2015Conference paper (Refereed)
  • 10.
    Belov, Ilja
    et al.
    Jönköping University, Sweden.
    Alavizadeh, Zahra
    Jönköping University, Sweden.
    Lindgren, Mats
    Omnisys Instruments AB, Sweden.
    Rydén, Jan
    Saab AB, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Experimental and CFD evaluation of active anti-condensation methods for non-hermetic cabinets2018In: 2018 19th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2018, p. 1-6Conference paper (Refereed)
    Abstract [en]

    Experimental evaluation of several active anti-condensation methods for application in non-hermetic electronics enclosures was performed in harsh climatic conditions, including RH = 70% and T = 43 °C. The studied methods included blowing the air along the exposed surface, combination of blowing and air heating as well as local heating of the exposed surface in natural convection conditions. The purpose was to prevent/remove the dew on/from the exposed surface of a micro-condensation sensor. The difference between the methods was quantified in terms of time for dew removal. The power consumption aspects were discussed. A CFD based optimization methodology was developed to determine the heating profiles for the local anti-condensation PCB heater in a non-hermetic cabinet exposed to the quickly changing climatic conditions. The potential for 60% energy savings was revealed by simulation.

  • 11.
    Belov, Ilja
    et al.
    Jönköping University, Sweden.
    Arwidson, Jonas
    Saab AB, Sweden.
    Poder, Ralf
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Johannesson, Pär
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Leisner, Peter
    Jönköping University, Sweden.
    The effect of variations in temperature cycling profile and mechanical properties of solder on thermo-mechanical reliability of a lead-free BGA package2015In: 2015 16th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, 2015, p. 165-169, article id 7103102Conference paper (Refereed)
    Abstract [en]

    The paper investigates the effect of variations both in temperature cycling profile and in SAC305 solder Young's modulus in the PBGA256 package on the thermo-mechanical reliability. FE simulations quantify the effect of cycle reduction and counting techniques by introducing different temperature profiles having identical dwell- and period time characteristics. A difference of 30% in predicted accumulated creep strain energy density per cycle has been determined for the studied profiles. Under the provided modelling assumptions and simplifications, the maximum variation of the thermal fatigue life of SAC305 solder joints is within 30% as the result of experimentally determined Young's modulus variation in as-delivered packages.

  • 12. Belov, Ilja
    et al.
    Lindgren, Mats
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Miljötålighet.
    Rydén, Jan
    Alavizadeh, Z
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    CFD Assisted Design Evaluation and Experimental Verification of a Logic-Controlled Local PCB Heater for Humidity Management in Electronrics Enclosure2010In: EuroSimE 2010. Bordeaux, Frankrike. 2010-04-26--28, 2010Conference paper (Refereed)
  • 13.
    Belov, Ilja
    et al.
    Jönköping University, Sweden.
    Zanella, Caterina
    RISE, SP – Sveriges Tekniska Forskningsinstitut. Jönköping University, Sweden; University of Trento, Italy.
    Edström, Curt
    Jönköping University, Sweden.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut. Jönköping University, Sweden.
    Finite element modeling of silver electrodeposition for evaluation of thickness distribution on complex geometries2016In: Materials & design, ISSN 0264-1275, E-ISSN 1873-4197, Vol. 90, p. 693-703Article in journal (Refereed)
    Abstract [en]

    The paper reveals benefits of multi-disciplinary computer simulation and parametric studies in the design of silver plating process for improved coating distribution. A finite element model of direct current silver plating is experimentally validated for an Assaf panel without agitation. The model combines tertiary current distribution with Butler-Volmer electrode kinetics and computational fluid dynamics at a very low flow-rate. The effect of charge transfer coefficients on the throwing power of the process is quantified for the studied geometry, and variation of cathodic current density and exchange current density is investigated. A simpler model based on secondary current distribution is employed to quantify the effect of electrolyte conductivity on the throwing power of the process. A model combining tertiary current distribution and computational fluid dynamics has been developed and experimentally validated for simulation of complex telecom component electroplating in agitated electrolyte. The effect of current density on the process throwing power is quantified. Recommendations regarding modeling methodology and the effect of electrochemical and process parameters on the thickness distribution have been developed.

  • 14.
    Belov, Vladimir
    et al.
    Ogarev Mordovia State University, Russia.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Mannikoff, Anders
    Herrljunga Elektriska AB, Sweden.
    Belov, Ilja
    Jönköping University, Sweden.
    Mathematical Model of Multi-Phase Power Converter for Parallel Computation2018In: International Journal of Emerging Electric Power Systems, ISSN 2194-5756, E-ISSN 1553-779X, article id 20170114Article in journal (Refereed)
    Abstract [en]

    A mathematical model of a multi-phase power conversion system composed of modified bridge-elements (B-system) capable for parallel computation has been developed. Experimental validation on the example of a power system including a synchronous generator and an AC-DC rectifier has been performed. A mathematical algorithm for B-system assembly and steps to obtain mathematical model of the B-system have been developed. Integration of mathematical models of conversion system into the complete model of a multi-phase power system has been explained and evaluation of computational efficiency of parallel computation techniques for the developed model of an AC-DC-AC converter has been performed. The presented modelling method can be employed in the design phase of smart grids, for power quality and conducted emission analysis.

  • 15.
    Borgqvist, Martin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Alexandersson, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Löfdahl, Gunn-Mari
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Tullin, Claes
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Förbrännings- och aerosolteknik.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Segersten, Jenny
    Aronsson, Björn
    Granström, Robert
    Ekdunge, Per
    Förstudie av testbädd för bränsleceller2013Report (Refereed)
    Abstract [sv]

    Prestudy of test bed for fuel cells This report investigates the potential needs and benefits of a Swedish national test bed for fuel cell and hydrogen technologies. The analysis is based on an interview study among 43 organisations within the field, as well as on inventory studies on existing test infrastructure in Sweden. The result is aggregated into a proposal that describes a test bed in terms of functionality and organisation.

  • 16. Casselgren, Johan
    et al.
    Hällstig, Emil
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    True Ground Speed Sensor (TGSS)2009In: The European Nanoelectronics Forum. Noordwijk, Nederländerna. 2009-11-17--18, 2009Conference paper (Refereed)
  • 17. Chedid, Michel
    et al.
    Belov, Ilja
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Low Power High bandwidth Power-Line Communication Network for Wearable Applications, BodyNets 20102010In: Fith International Conference on Body Area networks,. Greece. 2010-09-10--12, 2010Conference paper (Refereed)
  • 18. Chedid, Michel
    et al.
    Belov, Ilja
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Modelling and Characterization of Electrostatic Current Noise Induced Mechanically in Wired Wearable Applications2010In: Journal of Electrostatics, Vol. 68, no 1, p. 21-26Article in journal (Refereed)
  • 19.
    Cornander, Anna
    et al.
    RISE - Research Institutes of Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Emissionfree non-road mobile machinery2018Conference paper (Other academic)
  • 20.
    Cornander, Anna
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Nilsson, Karin
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Alexandersson, Anna
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Mörstam, Magnus
    RISE - Research Institutes of Sweden.
    Persvik, Mats
    Göteborgs Stads Leasing AB, Sweden.
    Eriksen, Jon
    Kunnskapsbyen Lilleström, Norway.
    Lundblad, Anders Olof
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    The Blue Move for a Green Economy : Behovsstudie och teknikkartläggning av arbetsmaskiner2018Report (Other academic)
    Abstract [en]

    The Blue Move project aims to generate an increased demand for hydrogen as a fuel and investigate the business potential of heavy machinery in the Öresund-Kattegatt- Skagerrak (ÖKS) region, contributing for renewable energy in the transport sector to increase. The use of heavy machinery generates significant carbon dioxide emissions and local air pollution. By using machines with batteries and/or fuel cells instead of combustion engines, local air pollution and climate impact from the machines can be reduced. Electrification also reduces noise and vibration problems, contributing to an improved local and working environment. Customers' requirements are changing and within the near future some clients will only buy zero-emission vehicles. For example, many municipalities have high environmental targets and aim to be climate neutral and fossil fuel-free by 2030. Setting the requirements for public procurement, municipalities and regions become very important players in the process of converting to fossil fuel-free working machines. Electrification is on the rise and the development is fast, which, in addition to the environmental benefits, allows many benefits such as increased service life and a reduced number of components. The cost and character of the service of the vehicles will also change. The choice between electrical operation with batteries or with fuel cells depends on the cost, weight and space requirement for the current energy need. When operating on fuel cells, the heavy machinery can be quickly fueled, and it has an unchanged performance from full to empty tank. The use of fuel cells is also space-saving compared with fullelectric machines since areas for charging or battery change are not required. Today there are both battery and fuel cell - electric heavy machinery available on the market. This report gives an overview of available equipment, but also prototype and demo machines. Both a continued technical development and an increased market share for emission-free vehicles are required to meet future environmental goals. In order to achieve success, it is important that customers and manufacturers meet.

  • 21.
    Davidsson, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Karlson, Ingvar
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Produktsäkerhet.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Bobert, Magnus
    Blomqvist, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Safety test methods for EV batteries2010Conference paper (Other academic)
  • 22.
    Davidsson, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Karlson, Ingvar
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Produktsäkerhet.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Bobert, Magnus
    Blomqvist, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Safety test methods for EV batteries2011In: World Electric Vehicle Journal, ISSN 2032-6653, E-ISSN 2032-6653, Vol. 4, no 1, p. 414-420Article in journal (Refereed)
  • 23.
    Davidsson, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Karlson, Ingvar
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Produktsäkerhet.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Bobert, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Blomqvist, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Test methods for EV batteries2010In: EVS25. Shenzhen, China. 2010-11-05--09, 2010Conference paper (Refereed)
  • 24.
    Eriksen, Jon
    et al.
    Kunnskapsbyen Lillestrøm, Norway; Hystorsys, Norway.
    Gjerløv, Jan Carsten
    Kunnskapsbyen Lillestrøm, Norway.
    Vik, Kristian E.
    Kunnskapsbyen Lillestrøm, Norway.
    Halvorsen, Bjørn Gregert
    NEL Hydrogen, Norway.
    Rambeck, Eric Lyche
    Oslo kommune, Norway.
    Rød, Benjamin Myklebust
    ZERO, Norway.
    Wiberg, Erik
    Vätgas Sverige, Sweden.
    Aronsson, Björn
    Vätgas Sverige, Sweden.
    Aleryd, Henrik
    Innovatum, Sweden.
    Svedhem, S.
    Innovatum, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics. Jönköping University, Sweden.
    The Blue Move for a Green Economy : Mulighetsstudie for hydrogen produksjon,industri, lagring og distribusjon 2017Report (Other academic)
    Abstract [no]

    Blue Move har utarbeidet en rapport som belyser 12 ulike muligheter for produksjon, industri, lagring og distribusjon av hydrogen i ØKS-regionen.

    Rapporten belyser ogs viktigheten av lav elavgift for hydrogenproduksjon gjennom beregninger gjort for en nyetablert hydrogenstasjon.

    Interreg-prosjektet Blue Move arbeider for å fremme økt bruk av fornybar energi som erstatning for fossile drivstoff i ØKS-regionen. Mulighetsstudien som er samlet i denne rapporten ser nærmere på hvilke produksjonsmetoder som er mest relevante, relatert til tilgjengelig fornybar kraft. Videre beskriver den hvordan hydrogenet kan anvendes utover veitransport, og på hvilken måte det kan ha betydning for veitransport at det også kommer andre anvendelsesområder.

  • 25.
    Fast, Lars
    et al.
    RISE - Research Institutes of Sweden.
    Lang, Jenny
    RISE - Research Institutes of Sweden.
    Nygren, Kristian
    Impact Coatings AB, Sweden.
    Bodén, Andreas
    PowerCell AB, Sweden.
    Baumann Ofstad, Axel
    PowerCell AB, Sweden.
    Leisner, Peter
    RISE - Research Institutes of Sweden. Jönköping University, Sweden.
    Successful Development of Coating for Bipolar Plates for Proton exchange Membrane Fuel Cell2015In: EAST Forum 2015, 2015Conference paper (Refereed)
  • 26.
    G. Sarius, Niklas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Miljötålighet.
    Lauridsen, J.
    Lewin, E.
    Lu, J.
    Högberg, H.
    Öberg, Å.
    Ljungcrantz, Henrik
    Leisner, Peter
    Eklund, P.
    Hultman, Lars
    Ni and Ti diffusion barrier layers between Ti-Si-C and Ti-Si-C-Ag nanocomposite coatings and Cu-based substrates2012In: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 206, no 8-9, p. 2558-2565Article in journal (Refereed)
  • 27.
    G. Sarius, Niklas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Miljötålighet.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Contact Resistance of Ti-Si-C-Ag and Ti-Si-C-Ag-Pd Nanocomposite Coatings2012In: Journal of Electronic Materials, ISSN 0361-5235, E-ISSN 1543-186X, Vol. 41, no 3, p. 560-567Article in journal (Refereed)
  • 28.
    G. Sarius, Niklas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Miljötålighet.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Hald, Jens
    Hultman, Lars
    Electroplating of Nickel in Grooves Under the Influence of Low and Medium Frequency Ultrasound.2011In: Journal of Electrochemistry and Plating Technology, no 1, p. 19-28Article in journal (Other academic)
  • 29.
    G. Sarius, Niklas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Miljötålighet.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Hald, Jens
    Hultman, Lars
    Influence of Ultrasound on filling of Grooves during Ni electroplating2009In: Eurointerfinish 2009. Bremen, Tyskland. 2009-09-23--24, 2009Conference paper (Refereed)
  • 30. Hansal, Wolfgang
    et al.
    Sandulache, Gabriela
    Mann, Rudi
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Nickel-phosphorous matrix composites by pulsed electroplating2013In: Electrochemica Acta, Vol. 114, p. 851-858Article in journal (Other academic)
  • 31. Hultman, Lars
    et al.
    G. Sarius, Niklas
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Miljötålighet.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Persson, P.O.A
    Hald, Jens
    Influence of ultrasound and cathode rotation on the formation of intrinsic stress in Ni films during electrodeposition2011In: Transactions of the Institute of Metal Finishing, Vol. 89, no 3, p. 137-142Article in journal (Refereed)
  • 32.
    Johansson, J.
    et al.
    Saab, Sweden.
    Belov, Ilja
    Jönköping University, Sweden.
    Johnson, Erland
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Dudek, R.
    Fraunhofer, Germany.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Investigation on thermal fatigue of SnAgCu, Cu100C, and SnPbAg solder joints in varying temperature environments2014In: Microelectronics Reliability, Vol. 54, no 11, p. 2523-2535Article in journal (Refereed)
    Abstract [en]

    Thermal cycling tests have been performed for a range of electronic components intended for avionic applications, assembled with SAC305, SN100C and SnPbAg solder alloys. Two temperatureprofiles have been used, the first ranging between -20 °C and +80 °C (TC1), and the second between -55 °C and +125 °C (TC2). High level of detail is provided for the solder alloy composition and the component package dimensions, and statistical analysis, partially supported by FE modeling, is reported. The test results confirm the feasibility of SAC305 as a replacement for SnPbAg under relatively benign thermomechanical loads. Furthermore, the test results serve as a starting point for estimation of damage accumulation in a critical solder joint in field conditions, with increased accuracy by avoiding data reduction. A computationally efficient method that was earlier introduced by the authors and tested on relatively mild temperature environments has been significantly improved to become applicable on extended temperature range, and it has been applied to a PBGA256 component with SAC305 solder in TC1 conditions. The method, which utilizes interpolated response surfaces generated by finite element modeling, extends the range of techniques that can be employed in the design phase to predict thermal fatigue of solder joints under field temperatureconditions.

  • 33.
    Johansson, J.
    et al.
    Saab, Sweden.
    Belov, Ilja
    Jönköping University, Sweden.
    Johnson, Erland
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    A computational method for evaluating the damage in a solder joint of an electronic package subjected to thermal loads2014In: Engineering Computations, Vol. 31, no 3, p. 467-489Article in journal (Refereed)
    Abstract [en]

    Purpose-The purpose of this paper is to introduce a novel computational method to evaluate damage accumulation in a solder joint of an electronic package, when exposed to operating temperature environment. A procedure to implement the method is suggested, and a discussion of the method and its possible applications is provided in the paper. Design/methodology/approach- Methodologically, interpolated response surfaces based on specially designed finite element (FE) simulation runs, are employed to compute a damage metric at regular time intervals of an operating temperature profile. The developed method has been evaluated on a finite-element model of a lead-free PBGA256 package, and accumulated creep strain energy density has been chosen as damage metric. Findings-The method has proven to be two orders of magnitude more computationally efficient compared to FE simulation. A general agreement within 3 percent has been found between the results predicted with the new method, and FE simulations when tested on a number of temperature profiles from an avionic application. The solder joint temperature ranges between +25 and +75 °C. Practical implications-The method can be implemented as part of reliability assessment of electronic packages in the design phase. Originality/value-The method enables increased accuracy in thermal fatigue life prediction of solder joints. Combined with other failure mechanisms, it may contribute to the accuracy of reliability assessment of electronic packages.

  • 34. Johansson, J
    et al.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Prognostics of Thermal Fatigue Failure of Solder Joints in Avionic Equipment2012In: IEEE Aerospace and Electronic Systems Magazine, Vol. 27, no 4, p. 16-24Article in journal (Other academic)
  • 35. Johansson, J
    et al.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Johnson, Erland
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Belov, Ilja
    An approach to life consumption monitoring of solder joints in operating temperature environment2012Conference paper (Refereed)
  • 36.
    Lang, Jenny
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Belov, Ilia
    Jönköping University, Sweden.
    Hellén, Johan
    Saab AB, Sweden.
    Lim, Jang-Kwon
    RISE, Swedish ICT, Acreo.
    Schødt, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Nilsson, Torbjörn M. J.
    Saab AB, Sweden.
    Poder, Ralf
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Bakowski, Mietek
    RISE, Swedish ICT, Acreo.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics. Jönköping University, Sweden.
    Thermo-Mechanical Reliability and Performance Degradation of a Lead-Free RF Power Amplifier with GaN-on-SiC HEMTs2016In: Materials Science Forum, 2016, Vol. 897, no May, p. 715-718Conference paper (Refereed)
    Abstract [en]

    RF power amplifier demonstrators containing each one GaN-on-SiC, HEMT, CHZ015AQEG, from UMS in SMD quad-flat no-leads package (QFN) were subjected to thermal cycles (TC) and power cycles (PC) followed by electrical, thermal and structural evaluation. Two types of solders i.e. Sn63Pb36Ag2 and lead-free SnAgCu (SAC305) and two types of TIM materials (NanoTIM and TgonTM 805) for PCB attachment to liquid cold plate were tested for thermomechanical reliability. Changes in electrical performance of the devices namely reduction of the current saturation value, threshold voltage shift, increase of the leakage current and degradation of the HF performance were observed as a result of an accumulated current stress during PC. No significant changes in the investigated solder or TIM materials were observed. 

  • 37.
    Lang, Jenny
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Lim, jang Kwon
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Hellén, Johan
    Saab AB, Sweden..
    Nilsson, Torbjörn M.J.
    Saab AB, Sweden..
    Schödt, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Danmark A/S.
    Poder, Ralf
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Danmark A/S.
    Belov, Ilja
    Jönköping University, Sweden.
    Bakowski, Mietek
    RISE - Research Institutes of Sweden, ICT, Acreo.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Reliability Study of GaN-onSiC HEMT RF Power Amplifiers2018In: Advances in Technology Innovation, Vol. 3, no 4, p. 157-165Article in journal (Refereed)
    Abstract [en]

    The RF power amplifier demonstrators containing each one GaN-on-SiC, HEMT, CHZ015A-QEG, from UMSin SMD quad-flat no-leads package (QFN) were subjected to thermal cycles (TC) and power cycles (PC) andevaluated electrically, thermally and structurally. Two types of solders, Sn63Pb36Ag2 and lead-free SnAgCu(SAC305), and two types of TIM materials, NanoTIM and TgonTM 805, for PCB attachment to the liquid cold platewere tested for thermo-mechanical reliability. Changes in the electrical performance of the devices, namely thereduction of the current saturation value, threshold voltage shift, increase of the leakage current and degradation ofthe HF performance were observed as a result of an accumulated current stress during PC. No significant changes inthe investigated solder or TIM materials were observed.

  • 38.
    Lang, Jenny
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Lim, Jang-Kwon
    RISE, Swedish ICT, Acreo.
    Hellén, Johan
    Saab AB, Sweden.
    Nilsson, Torbjörn M. J.
    Saab AB, Sweden.
    Schodt, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Poder, Ralf
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Belov, Ilja
    Jönköping University, Sweden.
    Bakowski, Mietek
    RISE, Swedish ICT, Acreo.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Reliability study of a RF power amplifier with GaN-on-SiC HEMTs2016In: ECS Transactions, 2016, Vol. 75, no 12, p. 49-59Conference paper (Refereed)
    Abstract [en]

    RF power amplifier demonstrators containing each one GaN-on- SiC, HEMT, CHZ015A-QEG, from UMS in SMD quad-flat noleads package (QFN) were subjected to thermal cycles (TC) and power cycles (PC) and evaluated electrically, thermally and structurally. Two types of lead-free solders (Sn63Pb36Ag2 and SnAgCu (SAC305)) and two types of TIM materials (NanoTIM and TgonTM 805) for PCB attachment to liquid cold plate were tested for thermo-mechanical reliability. Changes in electrical performance of the devices namely reduction of the current saturation value, threshold voltage shift, increase of the leakage current and degradation of the HF performance were observed as a result of an accumulated current stress during PC. No significant changes in the investigated solder or TIM materials were observed.

  • 39.
    Leisner, Peter
    RISE - Research Institutes of Sweden.
    About the effect of anodic pulses and periodiccurrent reversion on electrodeposits2012Conference paper (Refereed)
  • 40.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    Aspectsto be considered when making innovation out of promising research results insurface technology2018Conference paper (Other academic)
  • 41.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    CFD aided reflow oven profiling for PCB preheating in a soldering process2007In: Proc. of the 8th Int. Conference EurSimE 2007, 2007, , p. 535-542Conference paper (Refereed)
  • 42.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    CFD analysis of an avionic module for evaluating power distribution as a thermal management measure for a double-sided PCB2007In: Proc. 23rd Semiconductor thermal measurement and management symposium, SEMI-THERM 23, 2007, , p. 233-243Conference paper (Refereed)
  • 43.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics. Jönköping University, Sweden.
    EAST Prizes for excellence in surface technology2017In: Transactions of the IMF / The international journal of surface engineering and coatings, Vol. 95, no 4, p. 183-184Article in journal (Other (popular science, discussion, etc.))
  • 44.
    Leisner, Peter
    RISE - Research Institutes of Sweden. Jönköping university.
    Electrolytic methods for manufacturing of miniaturized structures2015Conference paper (Other academic)
  • 45.
    Leisner, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics. Jönköping University, Sweden.
    Examination of coatings and interfaces by CTX-ray2016In: Surface Characterization Conference 2016, 2016Conference paper (Other academic)
  • 46.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Influence of ultrasound and cathode rotation on formation of intrinsic stress in Ni films during electrodeposition2011In: Transactions of the Institute of Metal Finishing, ISSN 0020-2967, E-ISSN 1745-9192, Vol. 89, no 3, p. 137-142Article in journal (Refereed)
  • 47.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Low-cost high precision processing in MEMS packaging based on electrochemical processes2007Conference paper (Refereed)
  • 48.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Mathematical modeling of conducted EMI in a independent power supply system including power line communication technology2007In: Proc. IEEE International Symposium on Power Line Communications and Its Applications (ISPLC 2007, 2007, , p. 360-365Conference paper (Refereed)
  • 49.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    On thermomechanical durability analysis combined with computational fluid dynamics thermal analysis2007Conference paper (Refereed)
  • 50.
    Leisner, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
    Power quality and EMC solutions in micro grids with energy-trading capability2014In: (2014 International Symposium on Electromagnetic Compatibility, EMC Europe 2014, 2014, , p. 1203-1208p. 1203-1208Conference paper (Refereed)
    Abstract [en]

    A mathematical model of an AC/DC/AC power converter with an energy storage device has been developed on the basis of a bridge-element concept, that can be employed in the design phase for power quality and conducted emission analysis of micro grids. A prototype of a 5 kW AC/DC/AC power converter is built and a mockup of electric energy trading system is realized. Measurements conducted for three operating modes emulating electric energy transfer and power consumption in trading conditions have revealed a low voltage total harmonic distortion, not exceeding 1.3% for the tested cases.

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