Publications

Regular publications in high-ranking journals are an expression of our scientific expertise. We attend international congresses for exchange and networking within the scientific community and also present our latest research results there.

Jahr/Year Titel/Autor  Title/Author
2022

Quantitative Assessment of the Porosity in Ag-sintered Joints by non-destructive acoustic Inspection supplemented with a Deep Leaning assisted Signal Analysis

Brand, Sebastian; Kögel, Michael; Altmann, Frank; Bach, Hoang Linh
2022

Accelerated Lifetime Testing and Failure Analysis for Advanced Automotive Grade Ceramic Capacitors (MLCC)

Dresel, Fabian; Leib, Jürgen; Schletz, Andreas; Boettge, Bianca; Klengel, Sandy
2022

Comprehensive Study of Long-Term Reliability of Copper Bonding Wires at Harsh Automotive Conditions

Klengel, Robert; Klengel, Sandy; Tismer, Sebastian; Ackermann, Thomas; Araki, N.; Eto, M.; Haibara, T.; Yamada, T.; Feldmann, J.; Binner, R.; Peters, H.; Scheer, A.; Chee, V.
2022

Quantitative Assessment of the Porosity in Ag-sintered Joints by non-destructive acoustic Inspection supplemented with a Deep Leaning assisted Signal Analysis

Brand, Sebastian; Kögel, Michael; Altmann, Frank; Bach, Hoang Linh

 

Jahr/Year

 

Titel/Autor  Title/Author
2021

Deep Learning assisted quantitative Assessment of the Porosity in Ag-Sinter joints based on non-destructive acoustic inspection

Brand, S.; Koegel, M.; Altmann, F.
2021

Improved AlScN/GaN heterostructures grown by metal-organic chemical vapor deposition

Manz, Christian; Leone, Stefano; Kirste, Lutz; Ligl, Jana; Frei, Kathrin; Fuchs, Theodor; Prescher, Mario; Waltereit, Patrick; Verheijen, Marcel A.; Graff, Andreas; Simon-Najasek, Michél; Fiederle, Michael; Ambacher, Oliver
2021

Local metal segregation as root cause for electrical shorts in highly doped pressure sensor devices

Simon-Najasek, M.; Diehle, P.; Große, C.; Hübner, S.; Brokmann, G.; Sprenger, B.; Altmann, F.
2021

Nano Security: From Nano-Electronics to Secure Systems

Polian, I.; Altmann, F.; Arul, T.; Boit, C.; Brederlow, R.; Davi, L.; Drechsler, R.; Du, N.; Eisenbarth, T.; Güneysu, T.; Hermann, S.; Hiller, M.; Leupers, R.; Merchant, F.; Mussenbrock, T.; Katzenbeisser, S.; Kumar, A.; Kunz, W.; Mikolajick, T.; Pachauri, V.; Seifert, J.-P.; Sill Torres, F.; Trommer, J.
2021

Nano-CT imaging of electrically stressed power device metallization

Mueller, D.; Fella, C.; Altmann, F.; Graetz, J.; Balles, A.; Ring, M.; Gambino, J.
2021

Reliability and failure analysis of 100 nm AlGaN/GaN HEMTs under DC and RF Stress

Dammann, Michael; Baeumler, Martina; Kemmer, Tobias; Konstanzer, Helmer; Brueckner, Peter; Krause, Sebastian; Graff, Andreas; Simon-Najasek, Michél
2021

Thermal source separation for 3D defect localization using independent component analysis (ICA) from time-resolved temperature response (TRTR)

Koegel, M.; Brand, S.; Große, C.; Jacobs, K.J.P.; Wolf, I. de; Altmann, F.

Jahr/Year Titel/Autor  Title/Author
2020

3D hot-spot localization by lock-in thermography

Brand, S.; Altmann, F.
2020

Accelerated Lifetime Testing and Failure Analysis for Advanced Automotive Grade Ceramic Capacitors (MLCC)

Dresel, Fabian; Leib, Jürgen; Schletz, Andreas; Boettge, Bianca; Klengel, Sandy
2020

Dielectric strength and aging performance of polybutylene terephthalate (PBT) under the influence of temperature and humidity

Wels, S.; Boettge, B.; Bernhardt, R.; Klengel, S.; Claudi, A.
2020

Effects of alloying elements in high reliability copper wire bond material for high temperature applications

Eto, M.; Araki, N.; Yamada, T.; Klengel, R.; Klengel, S.; Petzold, M.; Sugiyama, M.; Fujimoto, S.
2020

Enhanced non-contact ultrasonic testing using an air-coupled optical microphone

Kaniak, G.; Rohringer, W.; Brauns, M.; Panzer, N.; Lücking, F.; Fischer, B.; Brand, S.; Große, C.
2020

How copper wire material additive elements effect the reliability of wire bonded contacts in HAST testing

Klengel, R.; Klengel, S.; Petzold, M.; Eto, M.; Araki, N.; Yamada, T.
2020

Influence of Copper Wire Material Additive Elements to the Reliability of Wire Bonded Contacts

Klengel, R.; Klengel, S.; Schischka, J.; Stephan, T.; Petzold, M.; Eto, M.; Araki, N.; Yamada, T.
2020

Mechanical and microstructural characterization of LTCC and HTCC ceramics for high temperature and harsh environment application

Naumann, Falk; Lorenz, Georg; Bernasch, Michael; Boettge, Bianca; Schischka, Jan; Ziesche, Steffen; Pernau, Hans-Fridtjof; Jägle, M.; Klengel, Sandy; Kappert, Holger
2020

Microstructure and shear force correlation after reliability testing of bond contacts using alternative al heavy wire materials

Klengel, R.; Groth, A.; Hempel, M.; Schischka, J.; Stephan, T.; Klengel, S.; Schneider-Ramelow, M.
2020

Numerical material design for reliable power electronics with cement-based encapsulation

Naumann, F.; Boettge, B.; Behrendt, S.; Eisele, R.; Klengel, S.
2020

On-Wafer Fast Evaluation of Failure Mechanism of 0.25-mm AlGaN/GaN HEMTs: Evidence of Sidewall Indiffusion

Rzin, M.; Meneghini, M.; Rampazzo, F.; Zhan, V.G.; Marcon, D.; Grünenpütt, J.; Jung, H.; Lambert, B.; Riepe, K.; Blanck, H.; Graff, A.; Altmann, F.; Simon-Najasek, M.; Poppitz, D.; Meneghesso, G.; Zanoni, E. 
2020

Reliability Physics of GaN HEMT Microwave Devices: The Age of Scaling

Zanoni, E.; Meneghini, M.; Meneghesso, G.; Rampazzo, F.; Marcon, D.; Zhan, V.G.; Chiocchetta, F.; Graff, A.; Altmann, F.; Simon-Najasek, M.; Poppitz, D.
2020

Root cause analysis of gate shorts in semi-vertical GaN MOSFET devices

Diehle, P.; Hübner, S.; Santi, C. de; Mukherjee, K.; Zanoni, E.; Meneghini, M.; Geens, K.; You, S.; Decoutere, S.; Altmann, F.

 

Jahr/Year Titel/Autor  Title/Author
2019

Adaptive low-temperature covalent bonding of III-nitride thin films by extremely thin water interlayers

Gerrer, Thomas; Graff, Andreas; Simon-Najasek, Michél; Czap, Heiko; Maier, Thomas; Benkhelifa, Fouad; Müller, Stefan; Nebel, Christoph E.; Waltereit, Patrick; Quay, Rüdiger; Cimalla, Volker
2019

Au-Pd@Meso-Co3O4: A Promising Material for New Generation Pellistor with Low Working Temperature

Lyu, Xuemeng; Gao, Haitao; Diehle, Patrick; Altmann, Frank; Tarantik, Karina; Schmitt, Katrin; Wöllenstein, Jürgen
2019

Influence of copper wire material to corrosion resistant packages and systems for high temperature applications

Klengel, S.; Klengel, R.; Schischka, J.; Stephan, T.; Petzold, M.; Eto, M.; Araki, N.; Yamada, T.
2019

Investigation of mechanical and microstructural properties of a new, corrosion resistant gold-palladium coated copper bond wire

Lorenz, G.; Naumann, F.; Klengel, R.; Klengel, S.; Petzold, M.; Eto, M.; Araki, N.; Yamada, T.
2019

Micro-Transfer-Printing and Potential Process Optimizations by FEA

Bühler, K.; Lorenz, G.; Mittag, M.; Krieger, U.; Heise, N.; Wicht, S.; Gerbach, R.; Naumann, F.
2019

Micro-transfer-printing for heterogeneous integration

Corbett, B.; Li, Z.; Bühler, K.; Naumann, F.; Krieger, U.; Wicht, S.; Bower, C.A.
2019

New Access to Soft Breakdown Parameters of Low-k Dielectrics Through Localisation-Based Analysis

Herfurth, N.; Beyreuther, A.; Amini, E.; Boit, C.; Simon-Najasek, M.; Hubner, S.; Altmann, F.; Herfurth, R.; Wu, C.; De Wolf, I.; Croes, K.
2019

Non-invasive soft breakdown localisation in low k dielectrics using photon emission microscopy and thermal laser stimulation

Herfurth, N.; Wu, C.; Beyreuther, A.; Nakamura, T.; Wolf, I. de; Simon-Najasek, M.; Altmann, F.; Croes, K.; Boit, C.
2019

SAM3: New failure analysis methods for heterogeneous systems

Schweinböck, T.; Pressel, K.; Altmann, F.; Hoffrogge, P.; Grimm, M.; Keiper, B.
2019

Utilization of scanning acoustic microscopy (SAM) in quantifying the biomechanical variations in tissues with Fuchs endothelial dystrophy (FECD)

Perone, J.M.; Mohamed, E.T.A.; Brand, S.; Koegel, M.; Declercq, N.F.

Jahr/Year Titel/Autor  Title/Author
2018

A new method for prediction of corrosion processes in Aluminum housing materials for electronic components

Klengel, S.; Stephan, T.; Mühs-Portius, B.
2018

A New, Efficient Method for Preparation of 3D Integrated Systems by Laser Techniques

Klengel, R.; Klengel, S.; Schusser, G.; Krause, M.
2018

Comparison of reliability of 100 nm AlGaN/GaN HEMTs with T-gate and SAG-gate technology

Dammann, Michael; Baeumler, Martina; Brueckner, Peter; Kemmer, Tobias; Konstanzer, Helmer; Graff, Andreas; Simon-Najasek, Michél; Quay, Rüdiger
2018

Corrosion mechanism in metallization systems for printed circuit boards

Klengel, S.; Stephan, T.; Mühs-Portius, B.;Klengel, R.
2018

Defect analysis using scanning acoustic microscopy for bonded microelectronic components with extended resolution and defect sensitivity

Brand, S.; Vogg, G.; Petzold, M. 
2018

Failure Analysis Techniques for 3D Packages

Altmann, F.;  Brand, S.; Petzold, M.
2018

Fast and Distributed Thermal Model for Thermal Modeling of GaN Power Devices

Sodan, V.; Stoffels, S.; Oprins, H.; Decoutere, S.; Altmann, F.; Baelmans, M.; De Wolf, I.
2018

Finite element study of chip package induced mechanical and corrosive failure modes complementing microstructural root cause analyses

Lorenz, G.; Simon-Najasek, M.; Lindner, A.
2018

High resolution acoustic GHz microscopy

Brand, S.; Kögel, M.; Altmann, F.
2018

Investigation of Material Dynamic Processes During Shear Test of Aluminum Heavy Wire Bond Contacts

Klengel, R.; Naumann, F.; Tismer, S.; Klengel, S.
2018

Limitation of test sample arrangements according to IEC 60243-1: Electrical strength of insulating materials - Test methods

Wels, S.; Obst, J.; Claudi, A.; Böttge, B.; Bernhardt, R.; Klengel, S.
2018

Lock-In-Thermography, Photoemission, and Time-Resolved GHz Acoustic Microscopy Techniques for Nondestructive Defect Localization in TSV

Brand, S.; Altmann, F.
2018

Material Characterization of Advanced Cement-Based Encapsulation Systems for Efficient Power Electronics with Increased Power Density

Böttge, B.; Naumann, F.; Behrendt, S.; Scheibel, M.G.; Kässner, S.; Klengel, S.; Petzold, M.; Nickel, K.G.; Hejtmann, G.; Miric, A.-Z.; Eisele, R.
2018

Microstructural and chemical investigation of dielectric breakdown areas in engineering plastics

Bernhardt, R.; Böttge, B.; Klengel, S.; Bron, M.; Bron, M.; Wels, S.; Claudi, A.
2018

Non-destructive Assessment of the Porosity in Silver (Ag) Sinter Joints Using Acoustic Waves

Brand, S.; Böttge, B.; Kögel, M.; Naumann, F.; Zijl, J.; Kersjes, S.; Behrens, T.; Altmann, F.
2018

Physical failure analysis methods for wide band gap semiconductor devices

Graff, A.; Simon-Najasek, M.; Poppitz, D.; Altmann, F.
2018

Scanning Acoustic Microscopy Comparison of Descemet's Membrane Normal Tissue and Tissue With Fuchs' Endothelial Dystrophy

Mohamed, E.T.A.; Perone, J.-M.; Brand, S.; Koegel, M.; Declercq, N.F.
2018

The influence of environmental conditions on the properties of housing materials for power electronics

Böttge, B.; Bernhardt, R.; Klengel, S.; Wels, S.; Claudi, A.

 

Jahr/Year Titel/Autor  Title/Author
2017

3D Localization of liner breakdown's within Cu filled TSV's by backside LIT and PEM defocusing series

Altmann, F.; Grosse, C.; Wolf, I. de; Brand, S.
2017

A new method for prediction of corrosion processes in metallization systems for substrates and electrical contacts

Klengel, S.; Stpehan, T.; Spohn, U.
2017

Acoustic and photoacoustic inspection of through-silicon vias in the GHz-frequency band

Brand, S.; Kögel, M.; Khaled, A.; DeWolf, I.; Moore, M.J.; Strohm, E.M.; Kolios, M.C.; Altmann, F.
2017

Exploring the thermal limit of GaN power devices under extreme overload conditions

Pribahsnik, F.P.; Nelhiebel, M.; Mataln, M.; Bernardoni, M.; Prechtl, G.; Altmann, F.; Poppitz, D.; Lindemann, A.
2017

Gigahertz scanning acoustic microscopy analysis of voids in Cu-Sn micro-connects

Ross, G.; Vuorinen, V.; Petzold, M.; Paulasto-Kröckel, M.; Brand, S.
2017

High resolution physical analysis of ohmic contact formation at GaN-HEMT devices

Graff, A.; Simon-Najasek, M.; Altmann, F.; Kuzmik, J.; Gregusová, D.; Hascík, S.; Jung, H.; Baur, T.; Grünenpütt, J.; Blanck, H.
2017

Interfacial void segregation of Cl in Cu-Sn micro-connects

Ross, G.; Tao, X.; Broas, M.; Mäntyoja, N.; Vuorinen, V.; Graff, A.; Altmann, F.; Petzold, M.; Paulasto-Kröckel, M.
2017

On reproducing the copper extrusion of through-silicon-vias from the atomic scale

Liu, J.; Huang, Z.; Conway, P.P.; Altmann, F.; Petzold, M.; Naumann, F.
2017

Reliability of 100 nm AlGaN/GaN HEMTs for mm-wave applications

Dammann, Michael; Baeumler, Martina; Polyakov, Vladimir M.; Brueckner, Peter; Konstanzer, Helmer; Quay, Rüdiger; Mikulla, Michael; Graff, Andreas; Simon-Najasek, M.
2017

Study of GHz-SAM sensitivity to delamination in BEOL layers

Khaled, A.; Kljucar, L.; Brand, S.; Kögel, M.; Aertgeerts, R.; Nicasy, R.; De Wolf, I.
2017

The combined effect of mechanical package stress and humidity on chip corrosion probability

Lorenz, G.; Simon-Najasek, M.; Lindner, A.
2017

XRD and ToF-SIMS study of intermetallic void formation in Cu-Sn micro-connects

Ross, G.; Vuorinen, V.; Krause, M.; Reissaus, S.; Petzold, M.; Paulasto-Kröckel, M.

 

Jahr/Year Titel/Autor  Title/Author
2016

Advanced 3D failure characterization in multi-layered PCBs

Grünwald, E.; Hammer, R.; Rosc, J.; Maier, G.A.; Bärnthaler, M.; Cordill M.J.; Brand, S.; Nuster, R.; Krivec, T.; Brunner, R.

2016

Comparative Reliability Study of Au Wire Bond Contacts on Al Metallization vs. over Pad Metallization

Klengel, R.; Schischka, J.; Berthold, L.; Klengel, S.

2016

Correlation of gate leakage and local strain distribution in GaN/AlGaN HEMT structures

Broas, M.; Graff, A.; Simon-Najasek, M.; Poppitz, D.; Altmann, F.; Jung, H.; Blanck, H.

2016

Correlation of PVD deposition parameters with electrical and mechanical properties of coated thin-glass compounds

Lorenz, G.; Naumann, F.; Westphalen, J.; Weller, S.; Junghähnel, M.;

2016

Detection and analysis of stress-induced voiding in Al-power lines by acoustic GHz-microscopy

Brand, S.; Simon-Najasek, M.; Kögel, M.; Jatzkowski, J.; Portius, R.; Altmann, F.;

2016

Fracture toughness of ultrashort pulse-bonded fused silica

Richter, S.; Naumann, F.; Zimmermann, F.; Tünnermann, A.; Nolte, S.;

2016

Evaluation of the bond quality of laser-joined sapphire wafers using a fresnoite-glass sealant

Pablos-Martin, A. de; Tismer, S.; Naumann, F.; Krause, M.; Lorenz, M.; Grundmann, M.; Höche, T. 
2016

Failure analysis and material characterization in power electronics packaging

Boettge, B.; Schak, M.; Klengel, R.; Schischka, J.; Klengel, S. 
2016

HOT-300 - a multidisciplinary technology approach targeting microelectronic systems at 300 °C operating temperature

Vogt, Holger; Altmann, Frank; Braun, Sebastian; Celik, Yusuf; Dietrich, Lothar; Dietz, Dorothee; Dijk, Marius van; Dreiner, Stefan; Döring, Ralf; Gabler, Felix; Goehlich, Andreas; Hutter, Matthias; Ihle, Martin; Kappert, Holger; Kordas, Norbert; Kokozinski, Rainer; Naumann, Falk; Nowak, Torsten; Oppermann, Hermann; Partsch, Uwe; Petzold, Matthias; Roscher, Frank; Rzepka, Sven; Schubert, Ralph; Weber, Constanze; Wiemer, Maik; Wittler, Olaf; Ziesche, Steffen
2016

Innovative failure analysis techniques for 3-D packaging developments

Altmann, F.; Petzold, M.
2016

Investigating stress measurement capabilities of GHz Scanning Acoustic Microscopy for 3D failure analysis

Khaled, A.; Brand, S.; Kögel, M.; Appenroth, T.; De Wolf, I.
2016

Magnetic field and current density imaging using off-line lock-in analysis

Kögel, M.; Altmann, F.; Tismer, S.; Brand, S.
2016

Microstructure and thermophysical characterization of innovative plastic materials for power electronics

Klengel, S.; Böttge, B.; Naumann, F.; Mittag, M.; Hirsch, U.; Ehrich, C.
2016

Non-destructive assessment of reliability and quality related properties of power electronic devices for the in-line application of scanning acoustic microscopy

Brand, S.; Naumann, F.; Tismer, S.; Böttge, B.; Rudzki, J.; Osterwald, F.; Petzold, M.
2016

Novel failure mode of chip corrosion at automotive HALL sensor devices under multiple stress conditions

Simon-Najasek, M.; Lorenz, G.; Lindner, A.; Altmann, F.
2016

Numerical prototyping and defect evaluation of scanning acoustic microscopy for advanced failure diagnostics

Naumann, F.; Brand, S.
2016

Potential failure risks causing delamination of sinter joints

Boettge, B; Reissaus, S.; Klengel, S.
2016

Probabilistic strength characterization of thin semiconductor devices for power electronic applications

Naumann, F.; Mittag, M.; Bernasch, M.; Petzold, M.
2016

Reliability evaluation of Si-dies due to assembly issues

Naumann, F.; Gottschalk, V.; Burchard, B.; Altmann, F.