Ellipsometric study of annealing processes of phosphorus-ion-implanted layers of Si

Abstract
The annealing processes of high‐dose P+‐ion‐implanted Si are studied by ellipsometry. The change in ellipsometric angle (Δ, ψ) during isothermal annealing is measured and compared with that of values calculated using a simple epitaxial regrowth model based on the distribution of the optical constants. The discrepancy between the experimental and the calculated change in angle shows imperfectness of annealing in the 500–550 °C temperature range.