Angular distribution of titanium ions and neutrals in high-power impulse magnetron sputtering discharges

被引:8
|
作者
Renner, M. [1 ,2 ]
Fischer, J. [1 ,3 ]
Hajihoseini, H. [4 ]
Gudmundsson, J. T. [5 ,6 ]
Rudolph, M. [7 ]
Lundin, D. [1 ]
机构
[1] Linkoping Univ, Dept Phys Chem & Biol IFM, Plasma & Coatings Phys Div, SE-58183 Linkoping, Sweden
[2] Rhein Westfal TH Aachen, DE-52062 Aachen, Germany
[3] Evatec AG, Hauptstr 1a, CH-9477 Trubbach, Switzerland
[4] Univ Twente, MESA Inst Nanotechnol, Ind Focus Grp XUV Opt, NL-7522 Enschede, Netherlands
[5] KTH Royal Inst Technol, Sch Elect Engn & Comp Sci, Div Space & Plasma Phys, SE-10044 Stockholm, Sweden
[6] Univ Iceland, Sci Inst, IS-107 Reykjavik, Iceland
[7] Leibniz Inst Surface Engn IOM, DE-04318 Leipzig, Germany
来源
基金
瑞典研究理事会;
关键词
PHYSICAL VAPOR-DEPOSITION; IONIZED FLUX FRACTION; HIPIMS DISCHARGES; ATOMS; IONIZATION; ENERGY; YIELDS; TI; TECHNOLOGY; COATINGS;
D O I
10.1116/6.0002555
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The angular dependence of the deposition rates due to ions and neutrals in high-power impulse magnetron sputtering (HiPIMS) discharges with a titanium target were determined experimentally using a magnetically shielded and charge-selective quartz crystal microbalance (or ionmeter). These rates have been established as a function of the argon working gas pressure, the peak discharge current density, and the pulse length. For all explored cases, the total deposition rate exhibits a heart-shaped profile and the ionized flux fraction peaks on the discharge axis normal to the cathode target surface. This heart-shaped pattern is found to be amplified at increasing current densities and reduced at increased working gas pressures. Furthermore, it is confirmed that a low working gas pressure is beneficial for achieving high deposition rates and high ionized flux fractions in HiPIMS operation.
引用
收藏
页数:18
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