Application of glycine containing solutions for electroless deposition of Co-P and Co-W-P films and their behavior as barrier layers

被引:17
作者
Tarozaite, Rima [1 ]
Sukackiene, Zita [1 ]
Sudavicius, Aloyzas [1 ]
Juskenas, Remigijus [1 ]
Selskis, Algirdas [1 ]
Jagminiene, Aldona [1 ]
Norkus, Eugenijus [1 ]
机构
[1] Inst Chem, LT-01108 Vilnius, Lithuania
关键词
Electroless deposition; Cobalt; Tungsten; Glycine; Dicarboxylic acids; Barrier layer; DIFFUSION-BARRIERS; THIN-FILM; COPPER METALLIZATION; MICROSTRUCTURE; ACID; ULSI;
D O I
10.1016/j.matchemphys.2009.05.016
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Co-P and Co-W-P alloy films were deposited by the electroless plating method on Cu foil or on Cu deposited by sputtering on a Ta/SiO2/Si/substrate. Dicarboxylic acids, used as buffering additives, increase the deposition rate and P quantity in the films. The cobalt deposition rate and P quantity in the films decrease with incorporation of tungsten into the films. AFM, XRD and XPS data indicate the differences between the structure of Co-P and Co-W-P films and confirm that Co-W-P films deposited from glycine containing solutions can serve as a perfect diffusion barrier layer to prevent Cu diffusion. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:117 / 124
页数:8
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