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Radio frequency-compensated Langmuir probe with auxiliary double probes

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.3478338· OSTI ID:22055723
; ;  [1]
  1. Department of Electrical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791 (Korea, Republic of)
A radio frequency (rf) compensation design using auxiliary double probes connected in parallel with a main measurement probe was developed for Langmuir probe diagnostics. This probe structure can reduce the sheath impedance of the main probe. In our probe design, the sheath capacitance of the probe can be increased and its sheath resistance can be decreased with increasing dc bias differential voltage between the auxiliary double probes. The I-V characteristic curve and electron energy distribution functions measured by our probe system had sufficient rf compensation performance in inductively coupled plasmas.
OSTI ID:
22055723
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 9 Vol. 81; ISSN 0034-6748; ISSN RSINAK
Country of Publication:
United States
Language:
English