Communication: CVD tungsten films have many technological applications
, and for most cases it is desirable to control the film surface struc
ture. Several growth models have been proposed, but predictions have b
een difficult to check due to lack of systematic experiments. This wor
k gives results for dynamics of LPCVD tungsten surfaces and makes a co
mparison with predicted behavior. A scanning tunneling microscopy imag
e of a rough film is shown.