Simulatlon of Ion Implantation into Multitlayer Structures

For the analytical description of doping profiles after ion implantation, good multilayer models are required to describe the implantation through thin layers, e.g. a scattering oxide or non-vertical mask edges. In this paper, benefits and drawbacks of some published models are discussed, and an improvement is suggested. Comparisons with results from Monte Carlo simulations and SIMS measurements are shown.