Abstract
The surface transient effects in the sputtering yield in amorphous Si layers by 0.5 keV O2+ and Ar+ ion bombardments have been studied by MEIS. In the case of O2+ ion bombardment, the surface transient effects cause rapid decrease in sputtering yield, even when the grazing incident angle is used, because of oxide layers formed by oxygen ion beam. In the case of Ar+ ion bombardment at the surface normal incidence, implanted Ar atoms, distributed up to 3 nm, increase sputtering rate significantly in the surface transition region. For the incident angle of 70°, there are little implanted Ar atoms, which suggests that the surface transient effect may be insignificant in sputtering conditions when 0.5 keV Ar+ ion bombardment with grazing angle of 70° from surface normal incidence was used.
Original language | English |
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Pages (from-to) | 959-962 |
Number of pages | 4 |
Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
Volume | 219-220 |
Issue number | 1-4 |
DOIs | |
State | Published - Jun 2004 |
Event | Proceedings of the Sixteenth International Conference on Ion - Albuquerque, NM., United States Duration: 29 Jun 2003 → 4 Jul 2003 |
Bibliographical note
Funding Information:This work was supported by Korea Research Foundation grant (KRF-2001-005-D20009), KOSEF through ASSRC at Yonsei University.
Keywords
- Depth profiling
- Sputtering yield
- Transient effect