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Mechanism of germanium plasma nitridation
被引:19
|作者:
Sugawara, Takuya
[1
,2
]
Sreenivasan, Raghavasimhan
[2
]
McIntyre, Paul C.
[2
]
机构:
[1] Tokyo Electron Ltd., Technology Development Center, Nirasaki, Yamanashi 407-0192, Japan
[2] Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
来源:
关键词:
Concentration (process) - Emission spectroscopy - Germanium compounds - Silicon - Substrates - Thin films - X ray photoelectron spectroscopy;
D O I:
10.1116/1.2348887
中图分类号:
学科分类号:
摘要:
The mechanisms of plasma nitridation of germanium (Ge) and silicon (Si) substrates are discussed based on plasma characteristics and oxynitride film properties. Optical emission spectroscopy (OES) study and x-ray photoelectron spectroscopy were utilized to characterize the plasma and film properties, respectively. In this study, high pressure (1.8 Torr) remote inductive coupled plasma and low pressure (2+ ion species acted as dominant reactive species. Using this process, germanium could be nitrided at low substrate temperature without hydrogen and high nitrogen concentration (∼22 at. %) GeON was obtained. © 2006 American Vacuum Society.
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页码:2439 / 2445
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