Abstract
The annealing behavior of secondary defects generated in 2 MeV B- and P-, and 1 MeV As-implanted (100) Si with a dose of 5×1014 ions/cm2 has been investigated after rapid thermal annealing (RTA) treatment using cross-sectional TEM observations. The results are compared with ones obtained by furnace annealing (FA) treatment. RTA is more effective than FA for the defect density reduction of deep defects existing beyond 2 μm depths from the surface in B- and P-implanted layers. However, when a dislocation loop diameter is close to the substrate surface, as in the case of As implantation, the loops climb up to the surface by 1250 °C RTA. Moreover, repeated RTA is effective for the suppression of secondary defect growth in B- and P-implanted layers, while there is no difference in defect density or configuration for As implantation between repeated and simple RTA.
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