Projects during Study
The following projects have been executed during my study (for details click on the link below):
Wavelet-based Compression using the SPIHT Algorithm (Semester Thesis)
Optimization of High-Density Neurochip (Semester Thesis)
Embedded MEMS Lab (Practical Course)
Open Survey Project
BioMEMS - Polymerase Chain Reaction (PCR) on a Chip (Presentation)
A Multi-Standard ADC for Cellular and WLAN in 65nm CMOS (Master Thesis)
Wavelet-based Compression using the SPIHT Algorithm (Semester Thesis)
Authors : Tobias Blaser, Stephan Senn, Philipp Stadelmann
Advisors : Marc Wegmüller, David Perels
Superadvisors : Norbert Felber, Hubert Käslin
Professor : Wolfgang Fichtner
Institutes : Integrated Systems Laboratory ETHZ, Microelectronics Design Center ETHZ
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The aim of this semester thesis was to develop an ASIC which is able to encode ECG and image data by using SPIHT. Set Partitioning
In Hierarchical Tree, for short SPIHT, is a compression algorithm for image data that was invented by Pearlman and Said in 1996. The chip was designed,
fabricated in a fab and afterwards tested on a IC tester. According to our knowledge so far, it is the first ASIC implementation
of SPIHT worldwide. We were able to show that an ASIC implementation is feasible, but the huge memory demand ask for further improvements. Especially
the ability to partition the image into smaller parts and the processing of these small parts is a key requirement for hardware design in our opinion.
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Please see the following documents and weblinks for further details:
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Optimization of High-Density Neurochip (Semester Thesis)
Authors : Stefan Berg, Stephan Senn
Advisors : Urs Frey, Flavio Heer
Professor : Andreas Hierlemann
Institute : Physical Electronics Laboratory ETHZ
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The aim of this semester thesis was a redesign of the readout circuit block of a so called neurochip. The task of a neurochip is the detection
of the potential of neurons by the help of an array of electrodes, called Multi Electrode Array (MEA). Beside of other invasive detection methods,
this detection principle is non-invasively and therfore is very welcome for neuronal research.
Please see the following documents and weblinks for further details:
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Embedded MEMS Lab (Practical Course)
Authors : Tomislav Cvetic, Dirk Möller, Stephan Senn, Franz Zürcher
Advisors : Daniel Bachmann, Wulf Glatz, Alain Jungen, Silvan Schmid, Bernd Schäberle, Christoph Stampfer, Florian Umbrecht
Superadvisor : Ronald Grundbacher
Professor : Christofer Hierold
Institute : Micro and Nanosystems ETHZ
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The aim of this practical course was the fabrication, the testing and the characterization of a MEMS device. The MEMS device was a one-dimensional
accelerometer sensor (measurement of acceleration in only one direction). The device was fabricated under guidance of our tutors in a clean
room at ETH. The testing and the characterization were carried out by the help of a speaker.
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Read more about this interesting project
in the report and of course on our project website:
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Open Survey Project
Authors : Georg Boecherer, Stephan Senn, Philipp Stadelmann, Diego Stutzer
Advisor : Elisabeth Coutts †
Professor : Andreas Diekmann
Institute : Professur für Soziologie ETHZ
Open Survey Package is an open source package, licenced under GNU General Public License. So you are free to reuse, change or append new code to the existing framework. But make sure that you do not include third party software that is not licenced as open source software. As this project is licenced under GNU Gneral Public License your modification will also be part of this licence. You are not allowed to sell your product. But you are encouraged to distribute it so that other people could also use it for their projects. It offers you the following benefits:
- Full Open Source Package: This package is licenced under the GNU General Public License.
- Including RRT: This survey supports the Randomized Response Technic (RRT).
- Data Analyzing using the R-Project: You can analyze your data using the R-project which is also an open source package.
For further details see the Project Website.
BioMEMS - Polymerase Chain Reaction (PCR) on a Chip (Presentation)
Authors : Stefan Axmann, Stefan Berg, Stephan Senn
Advisor : Nils Goedecke
Professors : Andreas Hierlemann, Christofer Hierold
Institutes : Physical Electronics Laboratory ETHZ, Micro and Nanosystems ETHZ
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This is a short presentation that was held in the course 'Micro- and Nanosystems'. The presentation can be downloaded
here.
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A Multi-Standard ADC for Cellular and WLAN in 65nm CMOS (Master Thesis)
Authors : Tomislav Cvetic, Stephan Senn
Advisors : Thomas Christen, Craig Keogh
Professor : Qiuting Huang
Institute : Integrated Systems Laboratory ETHZ
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This master thesis deals with the design of a reconfigurable wideband ΣΔ-modulator
for the cellular standards GSM-EDGE and UMTS as well as for the WLAN standards
IEEE 802.11a/b/g and the proposal draft n. A 4th order feed-forward ΣΔ-modulator is
evaluated and optimized in MATLAB and later implemented in 65nm CMOS in Cadence.
The designed ΣΔ-modulator fulfills the target specifications for all standards. In detail,
it supports a bandwidth that reaches from 100kHz to 20MHz. Further, it has a dynamic
range of 88dB / 79dB / 71dB / 64dB for GSM-EDGE / UMTS / WLAN a/b/g / WLAN n
respectively. Its input stable range is 0.8FS for a differential input swing of 1.4V at a supply
voltage of 1.2V.
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Please see the following documents and weblinks for further details:
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