Laser annealing of silicon on sapphire

Abstract
Silicon‐implanted silicon‐on‐sapphire wafers have been annealed by 50‐ns pulses from a Q‐switched Nd : YAG laser. The samples have been analyzed by channeling and by ω‐scan x‐ray double diffraction. After irradiation with pulses of a fluence of about 5 J cm−2 the crystalline quality of the silicon layer is found to be better than in the as‐grown state.