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- W2069541330 abstract "(Ti,Zr)N films were prepared by dc reactive magnetron sputtering from a Ti-5 atom % Zr alloy target in gas mixtures and then employed as diffusion barriers between Cu thin films and Si substrates. Material characteristics of the (Ti,Zr)N film were investigated by X-ray photoelectron spectroscopy and cross-sectional transmission electron microscopy (XTEM). The (Ti,Zr)N film microstructure was an assembly of very small columnar crystallites with a rock-salt (NaCl) structure. Metallurgical reactions of and were studied by X-ray diffraction and sheet resistance measurements. The variation percentage of sheet resistance for all Cu/barrier/Si systems stayed at a constant value after annealing up to 500°C for 30 min. However, the sheet resistance increased dramatically after annealing above 750°C for and 500°C for both and For these samples, the interface deteriorated seriously and formation of was observed by XTEM. Our results suggest that the refractory binary metal nitride film, (Ti,Zr)N, can be used as a diffusion barrier for Cu metallization as compared to the well-known TaN film. © 2003 The Electrochemical Society. All rights reserved." @default.
- W2069541330 created "2016-06-24" @default.
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- W2069541330 date "2003-01-01" @default.
- W2069541330 modified "2023-09-26" @default.
- W2069541330 title "Characteristics of DC Reactively Sputtered (Ti,Zr)N Thin Films as Diffusion Barriers for Cu Metallization" @default.
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- W2069541330 doi "https://doi.org/10.1149/1.1592913" @default.
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