Semiconductor device having an element inclusion region for reducing stress caused by lattice mismatch

摘要

A semiconductor device improves its electrical characteristics by reducing crystal defects in the vicinity of junction interfaces between a semiconductor layer, and a metal compound layer composed of semiconductor and metal elements, and between an epitaxial layer and its forming substrate. A pair of source/drain layers (52) are separately formed in a surface of a well layer (50), and a metal silicide layer (8) is formed thereon. A nitrogen inclusion region (9) is formed in the vicinity of a junction interface between the source/drain layers (52) and the metal silicide layer (8).