Negative Ion Density Measurements in Reactive Magnetron Sputtering
Negative Ion Density Measurements in Reactive Magnetron Sputtering
复制标题
反应磁控溅射中的负离子密度测量
DOI:
10.1002/ppap.200931606
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发表时间:
2009
影响因子:
3.5
通讯作者:
Dodd R
中科院分区:
文献类型:
--
作者:
Dodd R
A combination of laser photo‐detachment and conventional Langmuir probing has been used to obtain the bulk negative ion density in both a DC and radio frequency (RF) sputter magnetron. The argon and oxygen discharges were operated at low powers and over a range of pressures. The photo‐detachment signal is expected to reach a limiting value; however, the signal continues to increase with laser energy density and this can be attributed to a laser ablation effect. In the RF magnetron the electron temperature (Te) in oxygen decreased with increasing pressure, whereas the electron density (Ne) increased from 0.53 to 8.6 × 1014m−3. At around 12 mTorr, a sudden increase inNeby 3.7 is accompanied by a small drop inTe. The negative ion density (N−) also increases with pressure reaching a maximum of 1.7 × 1014m−3between 5 and 10 mTorr. Under similar conditions, the DC magnetron negative ion fraction (N−/Ne) is estimated to be ∼0.01, being significantly lower than in the RF magnetron whereN−/Ne≈ 1.
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DOI:
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发表时间:
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期刊:
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H. Amemiya
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H. Amemiya
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--
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2005
期刊:
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S.Kajita;S.Kado;A.Okamoto;S.Tanaka
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S.Tanaka
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M. Bacal
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M. Bacal
DOI:
--
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作者:
G. H. Yang;Yan Zhang;E. Kang;K. Neoh
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K. Neoh
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--
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2005
期刊:
Plasma Sources Sci.& Technol. 14
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S.Tanaka