LI Chunwei, TIAN Xiubo, JIANG Xuesong, et al. High deposition characteristic of (E-MF) HiPIMS at high ionization rate[J]. 2021, 53(2): 84-92.
DOI:
LI Chunwei, TIAN Xiubo, JIANG Xuesong, et al. High deposition characteristic of (E-MF) HiPIMS at high ionization rate[J]. 2021, 53(2): 84-92.DOI: 10.11918/202003040.
High deposition characteristic of (E-MF) HiPIMS at high ionization rate
HJ1.1mm] Aiming to enable high power impulse magnetron sputtering (HiPIMS) technology to achieve high-speed deposition process while maintaining high ionization rate
the electric and magnetic fields synergistic effect was applied to improve the HiPIMS discharge and deposition characteristics. The substrate ion current density
optical emission spectrum
surface morphology and surface roughness
cross-section morphology
and deposition rate of vanadium films prepared by electro-magnetic fields synergistically enhancing HiPIMS ((E-MF) HiPIMS) were investigated
and the intrinsic physical mechanism of (E-MF) HiPIMS was analyzed. Results show that compared with HiPIMS
the peak of substrate ion current density of the plate workpiece in the discharge of vanadium target (E-MF) HiPIMS increased seven times
and the peak of substrate ion current density of the cylinder-like workpiece in the discharge of copper target (E-MF) HiPIMS increased 14 times. The intensity of Ar0 spectral lines
Ar+ spectral lines
V0 spectral lines
and V+ spectral lines of (E-MF) HiPIMS all enhanced significantly
and the ionization rate of Ar and V particles increased. The vanadium films prepared by (E-MF) HiPIMS consists of V (111) and V (211). The surface of the vanadium films prepared by (E-MF) HiPIMS was much smoother
and the surface roughness was reduced from 15.0 nm to 9.6 nm. The growing structure of the vanadium films was much denser
and the deposition rate was increased by about 30%. The deposition rate of copper films prepared by (E-MF) HiPIMS increased by about 50% under the cylinder-like workpiece rotation conditions. (E-MF) HiPIMS is a novel discharge mode with high ionization rate and high deposition rate
which can effectively avoid the technical defect of low deposition rate of conventional HiPIMS.