Ion energy distribution functions in inductively coupled RF discharges in mixtures of chlorine and boron trichloride
Author(s) -
J. R. Woodworth,
C. A. Nichols,
T. W. Hamilton
Publication year - 1997
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/463640
Subject(s) - boron , boron trichloride , chlorine , inductively coupled plasma , ion , chemistry , plasma , analytical chemistry (journal) , inorganic chemistry , environmental chemistry , nuclear physics , physics , organic chemistry
Plasma discharges involving mixtures of chlorine and boron trichloride are widely used to etch metals in the production of very-large-scale-integrated circuits. Energetic ions play a critical role in this process, influencing the etch rates, etch profiles, and selectivity to different materials. The authors are using a gridded energy analyzer to measure positive ion energy distributions and fluxes at the grounded electrode of high-density inductively-coupled rf discharges. In this paper, they present details of ion energies and fluxes in discharges containing mixtures of chlorine and boron trichloride
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