Substrate Dependent Growth Rate of Plasma-Enhanced Atomic Layer Deposition of Titanium Oxide Using N2O Gas

被引:21
作者
Won, Seok-Jun [1 ,2 ,3 ]
Suh, Sungin [1 ,2 ]
Lee, Sang Woon [1 ,2 ]
Choi, Gyu-Jin [1 ,2 ]
Hwang, Cheol Seong [1 ,2 ]
Kim, Hyeong Joon [1 ,2 ]
机构
[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea
[2] Seoul Natl Univ, Interuniv Semicond Res Ctr, Seoul 151744, South Korea
[3] Samsung Elect Co Ltd, Syst LSI Div, Adv Technol Dev Team, Yongin 449900, Kyungki, South Korea
关键词
CHEMICAL-VAPOR-DEPOSITION; TIO2; THIN-FILMS; SUBSURFACE OXYGEN; RU; DIFFUSION; RU(0001);
D O I
10.1149/1.3269901
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
TiO2 thin films were grown on Ru, Pt, Al2O3-passivated Ru, and Si substrates by plasma-enhanced atomic layer deposition at 280 C. The Ru-substrate-enhanced growth (similar to 3 times higher than that on Si at <100 cycles) was attributed to the electron donation and the diffusion of previously contained oxygen from Ru onto the growing surface. When the Al2O3 layer was interposed between the Ru substrate and TiO2 film, even as thin as 0.4 nm, the electron donation was largely suppressed. Above 16-20 nm, the growth rates of rutile TiO2 (on Ru) and anatase TiO2 (on Si) were 0.055 and 0.04 nm/cycle, respectively. (C) 2009 The Electrochemical Society. [DOI: 10.1149/1.3269901] All rights reserved.
引用
收藏
页码:G13 / G16
页数:4
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