Sputtering off Metals and Semiconductors by Low Energy Argon Ions

Autor: G. K. Wehner, N. Laegreid
Rok vydání: 2013
Předmět:
DOI: 10.1016/b978-1-4831-9852-1.50037-2
Popis: Sputtering yields for poly crystalline semiconductor and metal targets under normally incident A + - ion bombardment were measured in the energy range from 30 to 800 eV. The measurements were made in a low pressure (2—5 μ ) high density argon plasma created in a demountable low voltage hot cathode discharge tube. The yields ( number of atoms removed/incident ion ) were determined by measuring the weight loss of spherical targets immersed like large negative Langmuir probes in the plasma. The yields are independent of gas pressure ( below p = 30 μ ), ion current density and target temperature. At 100 eV ion energy the yields range from 0.06 atoms/ion for Si to 0.6 atoms/ion for Ag. The curves are discussed in terms of the ion parameters.
Databáze: OpenAIRE