Atmospheric pressure plasma was generated using a modified dielectric barrier discharge (pin-to-plate DBD) with the power electrode consisting of multi-pins instead of a conventional blank planar plate. The discharge and amorphous silicon (a:Si) etching characteristics of the pin-to-plate DBD were compared with those of the conventional DBD at various N2/NF3 mixtures. The pin-to-plate DBD showed higher power consumption and higher discharge current than the conventional DBD-type at a given voltage. Therefore, the pin-to-plate DBD appeared to be more efficient than the conventional DBD. In addition, the pin-to-plate DBD showed higher a:Si etch rates than the conventional DBD at various N2/NF3 mixtures. With the pin-to-plate DBD, a maximum etch rate of a:Si of 72 nm/s were obtained with an electrode size of 170 mm × 100 mm, a gas mixture of 0.75% NF3 in N2 and an AC voltage of 18 kV when the sample was stationary. © 2007 Elsevier B.V. All rights reserved.
Kyung, S. J., Park, J. B., Lee, Y. H., Lee, J. H., & Yeom, G. Y. (2007). High-speed etching of amorphous silicon using pin-to-plate dielectric barrier discharge. Surface and Coatings Technology, 202(4–7), 1204–1207. https://doi.org/10.1016/j.surfcoat.2007.05.083