Method of fabricating strained-silicon transistors and strained-silicon CMOS transistors

摘要

A method of fabricating strained-silicon transistors includes providing a semiconductor substrate, in which the semiconductor substrate contains a gate structure thereon; performing an etching process to form two recesses corresponding to the gate structure within the semiconductor substrate; performing an oxygen flush on the semiconductor substrate; performing a cleaning process on the semiconductor substrate; and performing a selective epitaxial growth (SEG) to form an epitaxial layer in each recess for forming a source/drain region.