Integration of Pt/Ru electrode structures by metalorganic chemical-vapor deposition on poly-Si/SiO2/Si

被引:3
作者
Choi, ES [1 ]
Yang, JH [1 ]
Park, JB [1 ]
Yoon, SG [1 ]
机构
[1] Chungnam Natl Univ, Dept Mat Engn, Taejon 305764, South Korea
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2000年 / 18卷 / 01期
关键词
D O I
10.1116/1.591181
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The electrode structures of Pt(130 nm)/Ru(80 nm) were integrated on polysilicon by metalorganic chemical-vapor deposition. It was found that the ruthenium buffer layer plays an important role in preventing the oxidation of polysilicon during annealing at 700 degrees C in oxygen (760 Torr). The microstructure and conductivity of the platinum bottom electrodes depended greatly on the annealing conditions of the ruthenium buffer layer. The surface morphology and the conductivity of Pt/Ru (annealed at 700 degrees C in a vacuum) films annealed at 700 degrees C in oxygen were superior to those of Pt/Ru (annealed at 500 degrees C in a vacuum) films annealed. under the same conditions. The electrode structures suggested here may be applied to the integration of ferroelectric thin films. (C) 2000 American Vacuum Society. [S0734-211X(00)02701-3].
引用
收藏
页码:262 / 266
页数:5
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