Nd:YAG laser annealing of arsenic-implanted silicon: Relaxation of metastable concentrations by means of CO2-laser irradiation

Abstract
The relaxation of supersaturated arsenic concentrations resulting from Nd:YAG laser annealing of implanted silicon was investigated, using a thermal post‐treatment with a stationary 40‐W CO2−laser beam. It was found that the relaxation time constant is ∼12 min at 700 °C and ∼20 min at 600 °C.