“…Due to the large thermal expansion coefficient of Al 2 O 3, a silicon film is under a relatively high compressive stress [5]. Currently, a new technique, solid-phase epitaxial (SPE) regrowth process, has been applied successfully to significantly reduce the defect concentration and residual stress [6][7][8][9]. Some of present authors have shown that room temperature Si selfimplantation enables to form a satisfactory amorphous layer and leads to the improvement of SOS materials upon high-temperature thermal annealing.…”