CARRIER CONCENTRATION PROFILES OF ION-IMPLANTED SILICON

Abstract
Sheet‐resistivity and Hall‐effect measurements on ion‐implanted silicon wafers have been performed. Carrier concentration profiles over the range of about 1019–1011 carriers/cm3 have been obtained for implants of 1014 ions/cm2 of 11B, 27Al, and 31P. Three regions, due to different penetration mechanisms, can be clearly distinguished: the amorphous range, the channeling range, and the supertail. Some indication for a kinetic substitution mechanism is seen in the channeling region.