The surface transient effect in the Si sputtering yield by low energy O2+ and Ar+ ion bombardments

Hyung Ik Lee, Dae Won Moon, Hye Chung Shin, Suhk Kun Oh, Hee Jae Kang

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

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 languageEnglish
Pages (from-to)959-962
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume219-220
Issue number1-4
DOIs
StatePublished - Jun 2004
EventProceedings of the Sixteenth International Conference on Ion - Albuquerque, NM., United States
Duration: 29 Jun 20034 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

Fingerprint

Dive into the research topics of 'The surface transient effect in the Si sputtering yield by low energy O2+ and Ar+ ion bombardments'. Together they form a unique fingerprint.

Cite this