저널

The wafer surface temperature is an important parameter in the etching process which influences the reaction probabilities of incident species, the vapor pressure of etch products, and the re-deposition of reaction products on feature surfaces. In this study, we investigated all of the effects of substrate temperature on the etch rate of $ZrO_2$ thin film and selectivity of $ZrO_2$ thin film over $SiO_2$ thin film in inductively coupled plasma as functions of $Cl_2$ addition in $BCl_3$/Ar plasma, RF power and dc-bias voltage based on the substrate temperature in range of $10^{circ}C$ to $80^{circ}C$. The elements on the surface were analyzed by x-ray photoelectron spectroscopy (XPS).

Etch;$ZrO_2$;Temperature;ICP;$Cl_2/BCl_3$/Ar;