Ionization-enhanced solid phase epitaxy of amorphous silicon with boron impurities

Abstract
We have made the first high-resolution, laser interferometric measurements of the functional dependence of the velocity of (100) silicon solid phase epitaxy on the concentration of implanted boron impurities NB. At all measurement temperatures (450–550 °C), and for all NB<5×1019 cm−3 the fractional increase in the velocity was identically equal to the dimensionless ratio NB/Ni, where Ni is a thermally activated factor. This result disagrees with the predictions of all models for the effect of impurities on solid phase epitaxial growth.