J.W. Coburn, H.F. Winters
Journal of Applied Physics
The plasma-assisted etching of magnetron-sputtered polycrystalline tungsten films in CF4-H2 and CF4-O2 glow discharges has been studied as a function of ion energy using quartz-crystal microbalance methods supplemented by vacuum-transfer Auger electron spectroscopy and actinometric emission spectroscopy.