Wissenschaftliche Publikationen
Forschung bedeutet bei Hahn-Schickard auch, die Ergebnisse in wissenschaftlichen Publikationen zu veröffentlichen.
| Jahr | Name |
|---|---|
| 2021 |
CMOS-integrierter Chip zur telemetrischen Erfassung von Materialverformungen (StrainSens)T. Hehn Abschlussbericht IGF-Vorhaben Nr. 19897 N Kurzfassung einblendenAngestrebte Ziele:
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| 2021 |
A Non-Linear Lumped Model for the Electro-Mechanical Coupling in Capacitive MEMS MicrophonesS. Anzinger, C. Bretthauer, D. Tumpold, A. Dehé IEEE Journal of Microelectromechanical Systems, 2021, DOI: 10.1109/JMEMS.2021.3065129, pp. 1 - 9 Kurzfassung einblendenThis work provides an analytical non-linear model for the capacitive transduction in MEMS transducers with perforated counter-electrodes, especially applicable to capacitive MEMS microphones. Starting from an electrostatic description of a perforated unit cell of the transducer, analytical formulations of the variable capacitance and electrostatic forces are derived, accounting for the deflection profile of a clamped circular plate. A lumped implementation into conventional circuit simulations tools is enabled via behavioral modeling based on hardware description languages, such as Verilog-A. Therefore, the analytical model is approximated via Taylor series expansions, allowing for a stable and non-linear behavioral implementation. The resulting model finally enables both a small- and large-signal analysis of capacitive MEMS microphones, precisely accounting for non-linearities in the capacitive transduction. This allows to simulate the harmonic distortion of the microphone's output signal and to account for electrostatic spring-softening in simulations of its bias voltage dependent sensitivity. |
| 2021 |
Salivary Biomarkers for Dental Caries Detection and Personalized MonitoringP.N. Paqué*, C. Herz*, D.B. Wiedemeier, K. Mitsakakis, T. Attin, K. Bao, G.N. Belibasakis, J.P. Hays, J.S. Jenzer, W.E Kaman, M. Karpíšek, P. Körner, J.R. Peham, P.R. Schmidlin, T. Thurnheer, F.J. Wegehaupt, N. Bostanci J. Pers. Med., 2021, 11, 235. DOI: 10.3390/jpm11030235 |
| 2021 |
Validation and verification of predictive salivary biomarkers for oral healthN. Bostanci, K. Mitsakakis, B. Afacan, K. Bao, B. Johannsen, D. Baumgartner, L. Müller, H. Kotolová, G. Emingil, M. Karpíšek Scientific Reports, 2021, 11, 6406. DOI: 10.1038/s41598-021-85120-w |
| 2021 |
Rapid Detection of Pathogens in Wound Exudate via Nucleic Acid Lateral Flow ImmunoassayA. Brunauer, R. D. Verboket, D. M. Kainz, F. von Stetten, S. M. Früh Biosensors 11 (3), 74, doi: 10.3390/bios11030074 |
| 2019 |
Automated pre-analytic processing of whole saliva via magnet-beating for point-care protein biomarker analysisB. Johannsen, L. Müller, D. Baumgartner, L. Karkossa, S. M. Früh, N. Bostanci, M. Karpíšek, R. Zengerle, N. Paust, K. Mitsakakis Micromachines, 2019; 10:833. DOI: 10.3390/mi10120833 |
| 2021 |
Fully automated point-of-care differential diagnosis of acute febrile illnessS. Hin, B. Lopez-Jimena, M. Bakheit, V. Klein, S. Stack, C. Fall, A. Sall, K. Enan, M. Mustafa, V. Rusu, S. Goethel, N. Paust, R. Zengerle, L. Gillies, S. Frischmann, M. Weidmann, K. Mitsakakis PLoS Negl. Trop. Dis., 2021, 15(2), e0009177. DOI: 10.1371/journal.pntd.0009177 |
| 2020 |
Energy-Harvesting Applications and Efficient Power ProcessingT. Hehn, A. Bleitner, J. Goeppert, D. Hoffmann, D. Schillinger, D. Sanchez, Y. Manoli in NANO-CHIPS 2030 - On-Chip AI for an Efficient Data-Driven World, ISBN: 978-3-030-18338-7, DOI: 10.1007/978-3-030-18338-7_23, |
| 2020 |
Analog-to-Information ConversionB. Murmann, M. Verhelst, Y. Manoli in NANO-CHIPS 2030 - On-Chip AI for an Efficient Data-Driven World, ISBN: 978-3-030-18338-7, DOI: 10.1007/978-3-030-18338-7_17, |
| 2020 |
Low-Power Organic Light Sensor Array Based on Active-Matrix Common-Gate Transimpedance Amplifier on Foil for Imaging ApplicationsS. Elsaegh, C. Veit, U. Zschieschang, M. Amayreh, F. Letzkus, H. Sailer, M. Jurisch, J. Burghartz, U. Wuerfel, H. Klauk, H. Zappe, Y. Manoli IEEE Journal of Solid-State Circuits, vol. 55, no. 9, Print ISSN: 0018-9200, Electronic ISSN: 1558-173X, DOI: 10.1109/JSSC.2020.2993732, |
| 2020 |
Integrated Thermoelectric Sensors Based on Quantum Dot Superlattice for Thermal Management ApplicationsG. Savelli, J.-P. Colonna, M. Keller, P. Coudrain, D. Wendler, J. Goeppert, Y. Manoli, P. Faucherand, A. Royer Journal of Physics D: Applied Physics, vol. 53, no. 44, DOI: 10.1088/1361-6463/aba310 |
| 2020 |
Charge-Based Compact Modeling of Capacitances in Staggered Multi-Finger OTFTsL. Leise, J. Pruefer, G. Darbandy, M. Seifaei, Y. Manoli, H. Klauk, U. Zschieschang, B. Iniguez, A. Kloes IEEE Journal of the Electron Devices Society, vol. 8, Electronic ISSN: 2168-6734, DOI: 10.1109/JEDS.2020.2978400 |
| 2021 |
One-step, wash-free, bead-based immunoassay employing bound-free phase detectionB. Johannsen, M. Karpíšek, D. Baumgartner, V. Klein, N.Bostanci, N. Paust, S. M. Früh, R. Zengerle, K. Mitsakakis Anal. Chim. Acta, 2021;1153:338280. DOI: 10.1016/j.aca.2021.338280 |
| 2021 |
Scalable fabrication of renal spheroids and nephron-like tubules bybioprinting and controlled self-assembly of epithelial cellsK. Tröndle, L. Rizzo, R. Pichler, F. Koch, A. Itani, R. Zengerle, S. S. Lienkamp, P. Koltay, S. Zimmermann Biofabrication …., doi: 10.1088/1758-5090/abe185 |
| 2021 |
Point-of-Care System for HTLV-1 Proviral Load Quantification by Digital Mediator Displacement LAMPL. Becherer, J. F. Hess, S. Frischmann, M. Bakheit, H. Nitschko, S. Stinco, F. Zitz, H. Hofer, G. Porro, F. Hausladen, K. Stock, D. Drossart, H. Wurm, H. Kuhn, D. Huber, T. Hutzenlaub, N. Paust, M. Keller, O. Strohmeier, S. Wadle, N. Borst, R. Zengerle, F. von Stetten Micromachines 12 (2), 159, doi: 10.3390/mi12020159 |
Practical aspects and limitations of hermeticity testing of micro-encapsulations using cumulative helium leak detection for miniaturized implantable medical devicesISSN: 2156-3985, Seite – bis Seite: 351 - 359, 2020 Kurzfassung einblendenHermeticity of an electronic package defines its effectiveness to seal and protect the encapsulated electronics from the ingress of contaminants, gases and moisture, as well as helping avoid toxic materials from inside the capsule contacting tissue. Using accelerated testing by methods of leak detection analysis, the theoretical limit of the lifetime due to water ingress of an encapsulated device can be estimated. However, classical methods are not sufficient for micro-encapsulations and exhibit limitations due to the resolution of the detection mechanisms required for such small cavities. With the availability of cumulative helium leak detection (CHLD) the detection limits can be extended by several magnitudes of resolution. However, limitations due to the physics of leakage apply. This paper discusses the limitations concerning the ability for combined gross, and fine leak testing in combination with outgassing effects using CHLD for miniaturized implantable medical devices. Practical aspects are evaluated regarding the applicability of CHLD for such micro encapsulations at the example of an AuSn sealed alumina package. |
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| 2020 |
Practical aspects and limitations of hermeticity testing of micro-encapsulations using cumulative helium leak detection for miniaturized implantable medical devicesT. Guenther, A. Schwenck, P. Matteucci, R. Leigh, M. Svehla, A. Zimmermann, G.J. Suaning ISSN: 2156-3985, Seite – bis Seite: 351 - 359, 2020 Kurzfassung einblendenHermeticity of an electronic package defines its effectiveness to seal and protect the encapsulated electronics from the ingress of contaminants, gases and moisture, as well as helping avoid toxic materials from inside the capsule contacting tissue. Using accelerated testing by methods of leak detection analysis, the theoretical limit of the lifetime due to water ingress of an encapsulated device can be estimated. However, classical methods are not sufficient for micro-encapsulations and exhibit limitations due to the resolution of the detection mechanisms required for such small cavities. With the availability of cumulative helium leak detection (CHLD) the detection limits can be extended by several magnitudes of resolution. However, limitations due to the physics of leakage apply. This paper discusses the limitations concerning the ability for combined gross, and fine leak testing in combination with outgassing effects using CHLD for miniaturized implantable medical devices. Practical aspects are evaluated regarding the applicability of CHLD for such micro encapsulations at the example of an AuSn sealed alumina package. |
| 2020 |
Surface Optimization of Micro-Integrated ReflectiveOptical Elements by Thermoset Injection MoldingT. Guenther, L. Diegel, M. Roeder, M. Drexler, M. Haybat, P. Wappler, M. Soltani, A. Zimmermann 2076-3417, 1-13, 2020 Kurzfassung einblendenThermoset materials offer a multitude of advantageous properties in terms of shrinkage and warpage as well as mechanical, thermal and chemical stability compared to thermoplastic materials. Thanks to these properties, thermosets are commonly used to encapsulate electronic components on a 2nd-level packaging prior to assembly by reflow soldering on printed circuits boards or other substrates. Based on the characteristics of thermosets to develop a distinct skin effect due to segregation during the molding process, the surface properties of injection molded thermoset components resemble optical characteristics. Within this study, molding parameters for thermoset components are analyzed in order to optimize the surface quality of injection molded thermoset components. Perspectively, in combination with a reflective coating by e.g., physical vapor deposition, such elements with micro-integrated reflective optical features can be used as optoelectronic components, which can be processed at medium-ranged temperatures up to 230 °C. The obtained results indicate the general feasibility since Ra values of 60 nm and below can be achieved. The main influencing parameters on surface quality were identified as the composition of filler materials and tool temperature. |
| 2020 |
Parametric amplification of broadband vibrational energy harvesters for energy-autonomous sensors enabled by field-induced strictionU Nabholz, L Lamprecht, J Mehner, A Zimmermann, Mechanical Systems and Signal Processing 139, 106642, 2020 |
| 2020 |
Temperature Dependence of the Steering Angles of a Silicon Photonic Optical Phased ArrayPAK Yepez, U Scholz, A Zimmermann IEEE Photonics Journal 12 (2), 1-13, 2020 |