IISW 2021 online

IISW 2021 is live now. All papers and pre-recorded presentations are available to the registered attendees on iisw2021.vfairs.com. It was a honour to serve as chair of the Technical Program Committee of this edition.

Beyond being TPC chair, we also published 2 papers

  • with my group at KU Leuven on two-photon absorption:
    “Two-photon absorption in CMOS image sensors”, Daan Blommaert1, Guy Meynants1, Stefano Guerrieri2 and Paul Leroux1, 1 Dept. Electrical Engineering (ESAT), KU Leuven, Belgium; 2 ams Sensors Belgium, Antwerp, Belgium
  • with Photolitics, in collaboration DB Hitek, on charge domain global shutter pixels:
    5.6 μm charge domain global shutter pixel with 90 dB shutter efficiency, Guy Meynants1,2, Martin Waeny1, Deyan Levski1, Rostislav Kandilarov1,Denis Sami1, Georgi Bochev1, Manlyun Ha3, WooSung Choi3, DongJun Oh3, SeongJin Kim3, YongChan Kim3; 1 Photolitics, Ruse, Bulgaria; 2 Dept. Electrical Engineering (ESAT), KU Leuven, Belgium; 3 DB Hitek, Korea

IISW 2021 Program published

As Chair of the 2021 International Image Sensor Workshop (IISW) Technical Program Committee, I’m proud to say that we’ve composed a very nice program. You can find it here.

IISW will be held this year as a pure online event. Papers go online on Sept 13th. Registered attendees can watch pre-recorded presentations and ask questions by chat with the authors. Live Q&A and paper discussion sessions take place one week later.

You can now also register for the Workshop at the event website. Registration is only $100.

Tutorial article published on column ramp AD converters for image sensors

Together with Albert Theuwissen of TU Delft and Harvest Imaging, I wrote a tutorial article on column ramp AD converters. Starting from the basic architecture of ramp converters, the article dives deeper into circuit aspects such as the comparator design, the benefits of counters over latches and the limitations of the architecture . The article is published in the inaugural issue of “Foundations and Trends in Integrated Circuits and Systems”, a new journal that provides short monographs, overview and review articles on a specific topic in the field, edited by prof. G. Gielen (KU Leuven). It can be found here: https://www.nowpublishers.com/article/Details/ICS-002

Albert Theuwissen and Guy Meynants (2021), “Welcome to the World of Single-Slope Column-Level Analog-to-Digital Converters for CMOS Image Sensors”, Foundations and Trends® in Integrated Circuits and Systems: Vol. 1: No. 1, pp 1-71. http://dx.doi.org/10.1561/3500000002

On Mars!

Nice to see that first image – captured by the CMV20000 image sensor inside the rover’s engineering cameras. I can’t wait to see the full resolution pictures. 
A great milestone for the entire team that developed this chip back at CMOSIS. Who could have thought at that time that this imager would ever end up on Martian surface? The initial application was quite different 😉


Cool Solar Orbiter EUI and PHI images

We developed the extreme-uv sensitive backside thinned CMOS imagers for the EUI instrument at CMOSIS in collaboration with ROB (Brussels) and CSL (Liege). That was a truly Belgian project, rare to see that happen in our kingdom today.

Great to see the detectors in full action now, delivering stunning images. Also the PHI instrument, for which we developed the imagers and built by Max Planck Institute for Solar Physics, shows great pictures. Check ESA’s article and movie:


Here’s ESA movie telling more about the mission and the the ‘first light’ for the orbiter’s instruments, including EUI and PHI:

More on EUI detector design can be found, for example in the paper accessible via this link. Check also other publications in my publication list:


MPDI Sensors special issue on IISW 2019 finalized

I took the role of co-editor in-chief of a special issue of MDPI Sensors Journal on the IISW 2019. Fifteen of the best publications of IISW 20219 were invited for an extended paper. Thanks to the commitment of the authors and the work of our co-editors Johannes Solhusvik, Mike Guidash and Rihito Kuroda, it became an excellent collection of articles discussing how CIS technology is being advanced.
You can access the papers here. Enjoy them!