Research Interests

Chip Design, especially automated design of standard cells and custom transistor-level layouts

Combinatorial Optimization, tackling problems from both a theoretical and a practical perspective


since 2014 PhD student, Research Institute for Discrete Mathematics, University of Bonn
2013 - 2014 Studies of Mathematics (Part III), University of Cambridge
2009 - 2013 Studies of Physics and Mathematics, University of Bonn


BonnCell - main developer
BonnCell is an automated physical design tool for standard cells and custom transistor-level layouts. Given a set of transistors and a netlist which specifies the electrical connectivity of the transistors, BonnCell computes an area-optimal placement and wiring which is legal with respect to so-called DRC rules. BonnCell is written in C++.


P. Cremer, S. Hougardy, J. Schneider, J. Silvanus, Automatic Cell Layout in the 7nm Era
Nominated for Best Paper Award
Proceedings of the 2017 ACM on International Symposium on Physical Design. ACM PDF

P. Cremer, Non-Traditional Maximal Flow Methods in Image Analysis,
Essay for Part III of the Mathematical Tripos (Cambridge), April 2014. PDF

S. Ji, R. Fisher, E. García-Berro, P. Tzeferacos, G. Jordan, D. Lee, P. Lorén-Aguilar, P. Cremer, and J. Behrends, The Post-Merger Magnetized Evolution of White Dwarf Binaries: The Double-Degenerate Channel of Sub-Chandrasekhar Type Ia Supernovae and the Formation of Magnetized White Dwarfs,
Astrophysical Journal, 773, 136, 2013. arXiv DOI PDF

P. Cremer, Group Theoretical Aspects in Heterotic String Theory,
Bachelor's thesis in Physics, July 2012. PDF


Automatic Cell Layout in the 7nm Era, ISPD 2017 (International Symposium on Physical Design), Portland (OR), March 21, 2017

The Cut Rectangle Problem, Frico Workshop 2015 (Future Research in Combinatorial Optimization), Cologne, August 14, 2015

The Cut Rectangle Problem, ISMP 2015 (International Symposium on Mathematical Programming), Pittsburgh (PA), July 17, 2015