Paper on Science

There is a paper on this month issue of Science from some people of IBM, stating that they have "seen" the dopant distribution in a nano-scale device. The point is, leaving apart the technique, that the dopant does not get an uniform distribution, even after annealing. See the paper: Imaging of Arsenic Cottrell Atmospheres Around Silicon Defects by Three-Dimensional Atom Probe Tomography, by Keith Thompson, Philip L. Flaitz, Paul Ronsheim, David J. Larson, and Thomas F. Kelly