NDLI: Plasma Characteristics and Antenna Electrical Characteristics of an Internal Linear Inductively Coupled Plasma Source with a Multi-Polar Magnetic Field

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Plasma Characteristics and Antenna Electrical Characteristics of an Internal Linear Inductively Coupled Plasma Source with a Multi-Polar Magnetic Field

Content Provider	Semantic Scholar
Author	Kim, Kyong Nam Lim, Jong Hyeuk Park, Jung Kyun Yeom, Geun Young Lee, Sunghee
Copyright Year	2008
Abstract	The development of a large-area plasma source with high density plasmas is desired for a variety of plasma processes from microelectronics fabrication to flat panel display device fabrication. In this study, a novel internal-type linear inductive antenna referred to as “double comb-type antenna” was used for a large-area plasma source with the substrate area of 880 mm × 660 mm and the effect of plasma confinement by applying multi-polar magnetic field was investigated. High density plasmas on the order of 3.2 × 1011 cm−3 which is 50% higher than that obtained for the source without the magnetic field could be obtained at the pressure of 15 mTorr Ar and at the inductive power of 5,000 W with good plasma stability. The plasma uniformity <3% could be also obtained within the substrate area. When SiO2 film was etched using the double comb-type antenna, the average etch rate of about 2,100 Å/min could be obtained with the etch uniformity of 5.4% on the substrate area using 15 mTorr SF6, 5,000 W of rf power, and −34 V of dc-bias voltage. The higher plasma density with an excellent uniformity and a lower rf antenna voltage obtained by the application of the magnetic field are related to the electron confinement in a direction normal to the antenna line.
Starting Page	147
Ending Page	158
Page Count	12
File Format	PDF HTM / HTML
DOI	10.1007/s11090-007-9112-0
Volume Number	28
Alternate Webpage(s)	https://pnpl.skku.edu/_res/pnpl/etc/2008-05.pdf
Alternate Webpage(s)	https://doi.org/10.1007/s11090-007-9112-0
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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