Selective and epitaxial deposition of β-FeSi2 on silicon by rapid thermal processing-chemical vapor deposition using a solid iron source

Abstract
Selective semiconducting iron disilicide has been epitaxially deposited by rapid thermal processing chemical vapor deposition onto patterned silicon wafers. Using a solid iron source, we obtained stoichiometric β‐FeSi2. The extrinsic conductivity energy levels are about 0.1 eV from the valence band and we show that they are responsible for the observed ‘‘infrared quenching.’’