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Ultra‐low energy SIMS study of ultra‐shallow boron implants in HPHT diamond
Author(s) -
Guzmán de la Mata B.,
Dowsett M. G.,
Palitsin V.
Publication year - 2005
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200561905
Subject(s) - boron , diamond , trim , materials science , low energy , recoil , analytical chemistry (journal) , atomic physics , chemistry , metallurgy , physics , organic chemistry , chromatography , computer science , operating system
The primary beam energy and species (Cs + , Ar + ) dependence of ultra low energy SIMS depth profiles of ultra‐shallow boron implants into CVD grown diamond is investigated in this paper. The data are compared with TRIM simulation of the 5 keV 11 B + implant. Cs + profiles (1 keV, 30°) appear to be seriously distorted by atomic mixing and recoil implantation due to the high mass of the probe. Ar + profiles (300 eV–1 keV, 0°) are less distorted, but both Cs + and Ar + tend to produce significant tails. The Ar + SIMS profiles produce implants which appear to be shallower than the TRIM simulation. We show that profiling using Ar + with energies between 0.3 and 1 keV can be used to extrapolate a profile to zero beam energy. The extrapolated data indicate a centroid between 5 and 10 nm from the surface, whereas TRIM predicts 11 nm. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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