1. Imec, Kapeldreef 75, 3001 Heverlee, Belgium
2. Department of Metallurgy and Materials Engineering, KU Leuven, 3001 Heverlee, Belgium
3. University of Hasselt, Wetenschapspark 1, 3590 Diepenbeek, Belgium
4. Department of Electrical
Engineering (ESAT), KU Leuven, 3000 Heverlee, Belgium