H. Yen et al., MICROSTRUCTURAL EXAMINATION OF EXTENDED CRYSTAL DEFECTS IN SILICON SELECTIVE EPITAXIAL-GROWTH, Journal of electronic materials, 22(11), 1993, pp. 1331-1339
Selective epitaxial growth has been used to produce electronically iso
lated devices. The oxide/silicon interfaces in such materials are ofte
n associated with regions of poor device performance. In this study, t
he extended defects in the bulk near interfacial regions are examined
by transmission electron microscopy. Process modifications suggest a l
arge portion of the defects were due to thermal expansion mismatch and
can be avoided.