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Damage annealing behavior of 3 MeV Si/sup +/-implanted silicon

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.98912· OSTI ID:6369146
Cross-sectional transmission electron microscopy has been used to study the recrystallization behavior of a buried amorphous layer in 3 MeV Si/sup +/-implanted (100) silicon at a dose of 5 x 10/sup 15/ cm/sup -2/. The lower (deeper) amorphous/crystalline (a/c) interface is found to be more abrupt compared to the upper (closer to the surface) a/c interface. During recrystallization similar rates of advancement of the two a/c interfaces are observed. V-shaped dislocations are observed in the completely recrystallized layer. The defect density in the upper recrystallized region is found to be higher than that in the lower recrystallized region. These observations are correlated with the shape of the damage profile. The secondary defects grown at higher temperatures (>750 /sup 0/C) are found to be very stable and difficult to anneal out. The overall recrystallization behavior of the buried amorphous layer is found to be similar to that of lower energy implants.
Research Organization:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Road, Dayton, Ohio 45432
OSTI ID:
6369146
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:3; ISSN APPLA
Country of Publication:
United States
Language:
English