Kontakt
Raum: 43.2.408
Tel. 0731 - 50 26210
stefan.reich(at)uni-ulm.de
M.Sc. Stefan Reich
I studied electrical engineering at the University of Ulm, where I received my B.Sc degree in 2015 and my M.Sc. degree with a focus on microelectronics in 2018. Starting in September 2016, I completed an 8 month internship at Robert Bosch LLC in Palo Alto. The topic of my Master's Thesis was "Implementation of a neural recorder front-end with chopper-based noise reduction in a 180nm CMOS technology".
In November 2018 I started working towards my Ph.D. degree at the Institute of Microelectronics at the University of Ulm under the supervision of Prof. Dr.-Ing. Maurits Ortmanns.
Projekte
CMOS Circuits for Multi-Channel, Bidirectional Neural Interfaces
S. Reich, M. Sporer: Bidirectional, neural interfaces are a tool which is widely used in the study of the complex interconnections between neurons within the brain. To understand the activity of neural cells, nervous tissue is first stimulated with a current or voltage signal and afterwards its electrical activity is observed ... [more]
Studentische Arbeiten
[mt] = Masterarbeit, [rp] = Bachelorarbeit
Aktuelle Arbeiten
Abgeschlossene Arbeiten
- Monika Mayer
Miniaturised PCB with Wireless Power and Data Telemetry for Active Stents [mt] - Gunnar Kunze
Development of a chopped neural recording system in 180nm HV CMOS [mt] - Peter Ammann
Development of a high-precision Electrode Impedance Estimation Algorithm for implantable Brain-Machine-Interfaces [rp] - Daniel Vester
Development of a miniaturized neurostimulation platform for in-vivo brain research [mt] - Moritz Braig
Development of an automated testing setup for a neuromodulation IC [rp] - Dominik Fritschi
Study of Pseudoresistors in a 180nm HV CMOS Technology and Development of a Fast-Settling Algorithm for Biomedical Applications [rp] - Christian Gesell
Feasibility analysis of 2.4GHz SMD-antennas for utilization in implantable medical devices [rp] - Tobias Lobmeyer
Implementation of a Power Management IC for Neural Implants [mt] - Daniel Vester (Z)
Redesign eines LNA für ein neuronales Frontend auf eine 1.8V Technologie [rp] - Lukas Bücherl
Python GUI for Neural Waveform Generation [rp] - Monica Nicola
Redesign of a Tunable BiQuad Filter for lower Power Consumption [rp]
Publikationen
2023
Articles
18.
S. Reich,
M. Sporer and
M. Ortmanns,
"A Flexible Power Management System-On-Chip for Implantable Brain-Machine-Interfaces",
21st IEEE Interregional NEWCAS Conference (NEWCAS), Edinburgh, Scotland,
Jun.
2023.
17.
S. Reich,
M. Sporer and
M. Ortmanns,
"A Time-Domain Charge-Balancing Method for Neuromodulators",
21st IEEE Interregional NEWCAS Conference (NEWCAS), Edinburgh, Scotland,
Jun.
2023.
16.
S. Reich,
D. Fritschi,
M. Sporer and
M. Ortmanns,
"In Vitro Study of Artifact-Recovery Using a 32-Channel Neuromodulator Platform",
IEEE Transactions on Circuits and Systems I: Regular Papers (Early Access),
Mar.
2023.
| DOI: | 10.1109/TCSI.2023.3255549 |
2022
15.
M. Sporer,
S. Reich,
H. Mandry,
J. Becker and
M. Ortmanns,
"A Wireless Headstage Prototype Based on a Neurorecorder IC",
IEEE Biomedical Circuits and Systems Conference (BioCAS), Taipei, Taiwan,
Oct.
2022.
| DOI: | 10.1109/BioCAS54905.2022.9948554 |
14.
S. Reich,
P. Ammann,
M. Sporer and
M. Ortmanns,
"An Onchip Electrode Impedance Estimation achieving 1.2 dB 3σ-Accuracy with Minimum Hardware Overhead",
IEEE Biomedical Circuits and Systems Conference (BioCAS), Taipeh, Taiwan,
Oct.
2022.
13.
S. Reich,
M. Sporer,
J. Becker,
S. B. Rieger,
M. Schüttler and
M. Ortmanns,
"A 32-ch Neuromodulator with redundant Voltage Monitors avoiding Blocking Capacitors",
IEEE ESSDERC/ESSCIRC 2022, Milan, Italy,
Sep.
2022.
12.
S. Reich,
G. Kunze,
M. Sporer and
M. Ortmanns,
"Analysis of Chopper Ripple Reduction by Delayed Sampling",
SMACD / PRIME 2022; International Conference on SMACD and 17th International Conference on PRIME, pp. 1-4,
Jun.
2022.
11.
S. Reich,
D. Fritschi,
M. Sporer and
M. Ortmanns,
"Artifact-Recovery in Neuromodulators using Tunable High-Pass Corners",
20th IEEE International NEWCAS Conference, Québec, Canada,
Jun.
2022.
10.
M. Sporer,
S. Reich,
J. G. Kauffman and
M. Ortmanns,
"A Direct Digitizing Chopped Neural Recorder Using a Body-Induced Offset Based DC Servo Loop",
IEEE Transactions on Biomedical Circuits and Systems,
Jun.
2022.
| DOI: | 10.1109/TBCAS.2022.3177241 |
9.
S. Reich,
D. Fritschi,
M. Sporer and
M. Ortmanns,
"An Experimental Reliability Study of Pseudo-Resistors in Biomedical Applications",
IEEE International Symposium on Circuits and Systems (ISCAS), Austin, TX, USA,
May
2022.
2021
8.
S. Reich,
M. Sporer,
M. Haas,
J. Becker,
M. Schüttler and
M. Ortmanns,
"A High-Voltage Compliance, 32-Channel Digitally Interfaced Neuromodulation System on Chip",
IEEE Journal of Solid-State Circuits, vol. 56, issue 8, pp. 2476-2487,
Aug.
2021.
| DOI: | 10.1109/JSSC.2021.3076510 |
7.
M. Sporer,
N. Graber,
S. Moll,
S. Reich and
M. Ortmanns,
"Implementation of a Low Power Decimation Filter in a 180 nm HV-CMOS Technology for a Neural Recording Front-End",
SMACD / PRIME 2021; International Conference on SMACD and 16th Conference on PRIME, pp. 1-4.,
Jul.
2021.
6.
S. Reich,
M. Sporer and
M. Ortmanns,
"A Chopped Neural Front-end featuring Input Impedance Boosting with suppressed offset-induced charge transfer",
IEEE Transactions on Biomedical Circuits and Systems,
May
2021.
| DOI: | 10.1109/TBCAS.2021.3080398 |
2020
5.
S. Reich,
M. Sporer and
M. Ortmanns,
"A self-compensated, low-offset Voltage Buffer for Input Impedance Boosting in Chopped Neural Front-ends",
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain,
Oct.
2020.
4.
A. Herkle,
H. Mandry,
J. Becker,
S. Reich,
M. Sporer and
M. Ortmanns,
"Extracting Weak PUFs from Differential Nonlinearity of Digital-to-Analog Converters",
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain,
Oct.
2020.
2018
Conferences
3.
A. Neckernuss,
D. Geiger,
J. Pfeil,
M. Sporer,
S. Reich and
O. Marti,
"CellMOUSE: A novel high throughput real-time measurement method for suspended cells and particles",
DPG Tagung Berlin 2018, Conference Abstract,
Mar.
2018.
2.
D. Geiger,
A. Neckernuss,
J. Pfeil,
M. Sporer,
S. Reich and
O. Marti,
"High throughput optical measurement device for suspended cells and particles",
DPG Tagung Berlin 2018, Conference Abstract,
Mar.
2018.
2016
Articles
1.
J. Wagner,
S. Reich,
R. Ritter,
J. Anders and
M. Ortmanns,
"Finite GBW in Single OpAmp CT ΣΔ Modulators",
23rd IEEE International Conference on Electronics, Circuits and Systems (ICECS), Monaco,
Dec.
2016.
Wissenschaftl. Mitarbeiter
