@article{9996,
  author       = {{Ju, Xiaozhe and Mahnken, Rolf}},
  issn         = {{1617-7061}},
  journal      = {{PAMM}},
  title        = {{{"Goal-oriented adaptivity for parameter identification in linear micromorphic elasticity"}}},
  doi          = {{10.1002/pamm.201800098}},
  year         = {{2018}},
}

@inproceedings{9997,
  abstract     = {{Ultrasonic wire bonding is used to connect the electrical terminals of semiconductor modules in power electronics. Mul- tiple influencing factors in wedge/wedge bonding are known and extensively investigated. A constructively settable but rarely examined parameter is the bonding frequency. In case of bonding on challenging substrates, e.g. supple substruc- tures, a high influence of the working frequency is observed. The choice of the working frequency is typically based on experimental investigations for a certain component or substrate and needs to be evaluated anew for new applications. A profound understanding of the influence of the working frequency is required to achieve a reliable bond process and a short process development. Here a generalized model for the numerical simulation of the bond formation with respect to the dynamics of the substructure is presented. The simulation results are compared to experiments using 300 µm copper wire at different working frequencies and geometries of the substructure.}},
  author       = {{Schemmel, Reinhard and Althoff, Simon and Sextro, Walter and Unger, Andreas and Brökelmann, Michael and Hunstig, Matthias}},
  booktitle    = {{CIPS 2018 - 10th International Conference on Integrated Power Electronics Systems (CIPS 2018)}},
  pages        = {{230--235}},
  title        = {{{Effects of different working frequencies on the joint formation in copper wire bonding}}},
  year         = {{2018}},
}

@inproceedings{9998,
  abstract     = {{Ultrasonic wedge/wedge-wire bonding is used to connect electrical terminals of semiconductor modules in power electronics. The wire is clamped with a tool by a normal force and ultrasonic vibration is transmitted through the wire into the interface between wire and substrate. Due to frictional processes contaminations like oxide layers are removed from the contact zone and the surface roughness is reduced, thus the real contact area is increased. In the next step of bond formation, thermomechanical forces create micro-junctions between the wire and substrate and the bond strength increases. The bond parameters like the bond normal force, the ultrasonic vibration amplitude and the geometry of the clamping tool show a high influence on the strength and reliability of the wire bond and need to be investigated in detail. Therefore, in this contribution the dynamical behaviour of the ultrasonic system, the wire and the substrate are modeled in form of substructures, which are connected by the friction contacts between tool and wire and between wire and substrate. Approaches for modelling the time variant contact behaviour, the substrate dynamics, and the model order reduction for a time efficient simulation are described to simulate the full bonding process.}},
  author       = {{Schemmel, Reinhard and Hemsel, Tobias and Sextro, Walter}},
  booktitle    = {{6th European Conference on Computational Mechanics (ECCM 6)}},
  pages        = {{1--12}},
  title        = {{{Numerical and experimental investigations in ultrasonic heavy wire bonding}}},
  year         = {{2018}},
}

@inproceedings{9999,
  abstract     = {{Ultrasonic wire bonding is an indispensable process in the industrial manufacturing of semiconductor devices. Copper wire is increasingly replacing the well-established aluminium wire because of its superior electrical, thermal and mechanical properties. Copper wire processes differ significantly from aluminium processes and are more sensitive to disturbances, which reduces the range of parameter values suitable for a stable process. Disturbances can be compensated by an adaption of process parameters, but finding suitable parameters manually is difficult and time-consuming. This paper presents a physical model of the ultrasonic wire bonding process including the friction contact between tool and wire. This model yields novel insights into the process. A prototype of a multi-objective optimizing bonding machine (MOBM) is presented. It uses multi-objective optimization, based on the complete process model, to automatically select the best operating point as a compromise of concurrent objectives.}},
  author       = {{Unger, Andreas and Hunstig, Matthias and Meyer, Tobias and Brökelmann, Michael and Sextro, Walter}},
  booktitle    = {{In Proceedings of IMAPS 2018 – 51st Symposium on Microelectronics, Pasadena, CA, 2018}},
  keywords     = {{wire bonding, multi-objective optimization, process model, copper wire, self-optimization}},
  title        = {{{Intelligent Production of Wire Bonds using Multi-Objective Optimization – Insights, Opportunities and Challenges}}},
  doi          = {{10.4071/2380-4505-2018.1.000572}},
  volume       = {{Vol. 2018, No. 1, pp. 000572-000577.}},
  year         = {{2018}},
}

@article{3921,
  abstract     = {{Bottom-up patterning techniques allow for the creation of surfaces with ordered arrays of nanoscale features
on large areas. Two bottom-up techniques suitable for the formation of regular nanopatterns on
different length scales are nanosphere lithography (NSL) and block copolymer (BCP) lithography. In this
paper it is shown that NSL and BCP lithography can be combined to easily design hierarchically nanopatterned
surfaces of different materials. Nanosphere lithography is used for the pre-patterning of
surfaces with antidots, i.e. hexagonally arranged cylindrical holes in thin films of Au, Pt and TiO2 on SiO2,
providing a periodic chemical and topographical contrast on the surface suitable for templating in subsequent
BCP lithography. PS-b-PMMA BCP is used in the second self-assembly step to form hexagonally
arranged nanopores with sub-20 nm diameter within the antidots upon microphase separation. To
achieve this the microphase separation of BCP on planar surfaces is studied, too, and it is demonstrated
for the first time that vertical BCP nanopores can be formed on TiO2, Au and Pt films without using any
neutralization layers. To explain this the influence of surface energy, polarity and roughness on the microphase
separation is investigated and discussed along with the wetting state of BCP on NSL-pre-patterned
surfaces. The presented novel route for the creation of advanced hierarchical nanopatterns is easily applicable
on large-area surfaces of different materials. This flexibility makes it suitable for a broad range of
applications, from the morphological design of biocompatible surfaces for life science to complex
pre-patterns for nanoparticle placement in semiconductor technology.}},
  author       = {{Brassat, Katharina and Kool, Daniel and Bürger, Julius and Lindner, Jörg}},
  issn         = {{2040-3364}},
  journal      = {{Nanoscale}},
  number       = {{21}},
  pages        = {{10005--10017}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Hierarchical nanopores formed by block copolymer lithography on the surfaces of different materials pre-patterned by nanosphere lithography}}},
  doi          = {{10.1039/c8nr01397g}},
  volume       = {{10}},
  year         = {{2018}},
}

@article{3923,
  abstract     = {{Dodecyl amine edge functionalized few-layer graphene oxide quantum dots were synthesized in good
yields. The covalent functionalization was demonstrated with NMR and AFM-IR. The resulting structure
and particle size was measured with AFM and HRTEM. The thermal stability of the compound was
investigated and showed a stability of up to 220 °C. The modified graphene oxide quantum dots showed
excellent solubility in various organic solvents, including ethers, methanol, toluene, n-hexane, heptane,
xylene, dichloromethane and toluene. The stability of a resulting toluene solution was also proven by
static light scattering measurements over several days. The excellent solubility gives the possibility of an
efficient and fast spray application of the functionalized graphene oxide quantum dots to steel surfaces.
Hence, the macroscopic friction behavior was investigated with a Thwing-Albert FP-2250 friction tester. A
thin film of the dodecyl amine functionalized graphene oxide quantum dots on steel lowered the friction
coefficient from 0.17 to 0.11 and revealed a significant corrosion inhibition effect.}},
  author       = {{Wolk, Andreas and Rosenthal, Marta and Neuhaus, Stephan and Huber, Klaus and Brassat, Katharina and Lindner, Jörg and Grothe, Richard and Grundmeier, Guido and Bremser, Wolfgang and Wilhelm, René}},
  issn         = {{2045-2322}},
  journal      = {{Scientific Reports}},
  number       = {{1}},
  publisher    = {{Springer Nature}},
  title        = {{{A Novel Lubricant Based on Covalent Functionalized Graphene Oxide Quantum Dots}}},
  doi          = {{10.1038/s41598-018-24062-2}},
  volume       = {{8}},
  year         = {{2018}},
}

@article{3925,
  abstract     = {{Site-specific formation of nanoscaled protein structures is a challenging task. Most known structuring
methods are either complex and hardly upscalable or do not apply to biological matter at all. The presented combination of enzyme mediated autodeposition and nanosphere lithography provides an easy-to-apply approach for the buildup of protein nanostructures over a large scale. The key factor is the tethering of enzyme to the support in designated areas. Those areas are provided via prepatterning of enzymatically active antidots with variable diameters. Enzymatically triggered protein addressing occurs exclusively at the intended areas and continues until the entire active area is coated. After this, the reaction self-terminates. The major advantage of the presented method lies in its easy applicability and upscalability. Large area structuring of entire support surfaces with features on the nanometer scale is performed efficiently and without the necessity of harsh conditions. These are valuable premises for large-scale applications with potentials in biosensor technology, nanoelectronics, and life sciences.}},
  author       = {{Rüdiger, Arne A. and Brassat, Katharina and Lindner, Jörg and Bremser, Wolfgang and Strube, Oliver I.}},
  issn         = {{0743-7463}},
  journal      = {{Langmuir}},
  number       = {{14}},
  pages        = {{4264--4270}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Easily Accessible Protein Nanostructures via Enzyme Mediated Addressing}}},
  doi          = {{10.1021/acs.langmuir.7b04089}},
  volume       = {{34}},
  year         = {{2018}},
}

@inproceedings{3927,
  author       = {{Grundmeier, Guido and Brassat, Katharina and Keller, A. and Lindner, Jörg}},
  location     = {{Warsaw, Poland}},
  title        = {{{With directed self-arrangement of DNA origami to large-area quantum dot arrays}}},
  year         = {{2018}},
}

@inproceedings{3929,
  author       = {{Brassat, Katharina and Kool, Daniel and Lindner, Jörg}},
  location     = {{Warsaw, Poland}},
  title        = {{{Hierarchical nanopore and nanoring arrays by self-assembly techniques}}},
  year         = {{2018}},
}

@inproceedings{3930,
  author       = {{Brassat, Katharina and Taube, A. and Kool, Daniel and Tasche, L. and Hoyer, K.P. and Schaper, Mirko and Lindner, Jörg}},
  location     = {{Warsaw, Poland}},
  title        = {{{Ti-6Al-4V alloy: 3D printing of lightweight implants and nanopatterning by self-assembly}}},
  year         = {{2018}},
}

@inproceedings{3943,
  author       = {{Brassat, Katharina and Kool, Daniel and Taube, A. and Schaper, Mirko and Lindner, Jörg}},
  location     = {{Straßburg, France}},
  title        = {{{Morphology investigation of nanopores by block copolymer lithography on different material surfaces}}},
  year         = {{2018}},
}

@inproceedings{3944,
  author       = {{Brassat, Katharina and Brüngeler, A. and Bremser, W.  and Strube, O.I. and Lindner, Jörg}},
  location     = {{Straßburg, France}},
  title        = {{{Nanoscopic protein arrays on BCP prepatterned surfaces}}},
  year         = {{2018}},
}

@inproceedings{3945,
  author       = {{Brassat, Katharina and Ramakrishna, S. and Keller, A. and Lindner, Jörg}},
  location     = {{Phoenix (AZ), USA}},
  title        = {{{Hierarchical nanopatterns by site-selective DNA origami adsoprtion on pre-patterned surfaces}}},
  year         = {{2018}},
}

@inproceedings{3946,
  author       = {{Drude, Dennis and Lindner, Jörg}},
  location     = {{Phoenix (AZ), USA}},
  title        = {{{Simulation of Transport Processes during the Convective Self-Assembly of Colloidal Nanomasks}}},
  year         = {{2018}},
}

@inproceedings{3947,
  author       = {{Brassat, Katharina and Bremser, W. and Strube, O. and Grundmeier, G. and Keller, A. and Lindner, Jörg}},
  location     = {{Warsaw (Poland)}},
  title        = {{{Protein and DNA origami arrays on large areas by directed self-assembly }}},
  year         = {{2018}},
}

@inproceedings{3948,
  author       = {{Lindner, Jörg}},
  location     = {{TU Dortmund}},
  title        = {{{Selbstorganisation für die Nanotechnik von morgen}}},
  year         = {{2018}},
}

@inproceedings{3949,
  author       = {{Lindner, Jörg}},
  location     = {{Universität Hannover}},
  title        = {{{Nanoscale materials and interface design by self-organization}}},
  year         = {{2018}},
}

@article{4165,
  abstract     = {{Metal nanoparticles host localized plasmon excitations that allow the manipulation of optical fields at the nanoscale. Despite the availability of several techniques for imaging plasmons, direct access into the symmetries of these excitations remains elusive, thus hindering progress in the development of applications. Here, we present a combination of angle-, polarization-, and space-resolved cathodoluminescence spectroscopy methods to selectively access the symmetry and degeneracy of plasmonic states in lithographically fabricated gold nanoprisms. We experimentally reveal and spatially map degenerate states of multipole plasmon modes with nanometer spatial resolution and further provide recipes for resolving optically dark and out-of-plane modes. Full-wave simulations in conjunction with a simple tight-binding model explain the complex plasmon structure in these particles and reveal intriguing mode-symmetry phenomena. Our approach introduces systematics for a comprehensive symmetry characterization of plasmonic states in high-symmetry nanostructures.}},
  author       = {{Myroshnychenko, Viktor and Nishio, Natsuki and García de Abajo, F. Javier and Förstner, Jens and Yamamoto, Naoki}},
  issn         = {{1936-0851}},
  journal      = {{ACS Nano}},
  keywords     = {{tet_topic_plasmonics}},
  number       = {{8}},
  pages        = {{8436--8446}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Unveiling and Imaging Degenerate States in Plasmonic Nanoparticles with Nanometer Resolution}}},
  doi          = {{10.1021/acsnano.8b03926}},
  volume       = {{12}},
  year         = {{2018}},
}

@inproceedings{4236,
  author       = {{Wachsmuth, Henning and Stede, Manfred and El Baff, Roxanne and Al Khatib, Khalid and Skeppstedt, Maria and Stein, Benno}},
  booktitle    = {{Proceedings of the 27th International Conference on Computational Linguistics}},
  keywords     = {{argument}},
  pages        = {{3753--3765}},
  title        = {{{Argumentation Synthesis following Rhetorical Strategies}}},
  year         = {{2018}},
}

@article{4324,
  abstract     = {{We study the dependence of the intensity and linear polarization of light scattered by isolated particles with the compact
irregular shape on their size using the discontinuous Galerkin time domain numerical method. The size parameter of particles varies in the range of X = 10 to 150, and the complex refractive index is m = 1.5 + 0i. Our results show
that the backscattering negative polarization branch weakens monotonously, but does not disappear at large sizes, up to the geometrical optics regime, and can be simulated without accounting for wave effects. The intensity backscattering surge becomes narrower with increasing particle size. For X = 150, the surge width is several degrees.}},
  author       = {{Grynko, Yevgen and Shkuratov, Yuriy and Förstner, Jens}},
  issn         = {{0146-9592}},
  journal      = {{Optics Letters}},
  keywords     = {{tet_topic_scattering}},
  number       = {{15}},
  pages        = {{3562}},
  publisher    = {{The Optical Society}},
  title        = {{{Intensity surge and negative polarization of light from compact irregular particles}}},
  doi          = {{10.1364/ol.43.003562}},
  volume       = {{43}},
  year         = {{2018}},
}