Arrangement for treatment of wafer-shaped articles, particularly silicon wafers

摘要

In an arrangement for treatment of silicon wafers (4) there is chuck (1) for treatment of silicon wafers (4) which can be caused to turn around its axis (3) via shaft (2). Above the surface of chuck (1) which carries silicon wafer (4) there is hood (5) which does not turn when wafer-shaped article (4) is being treated. Inert gas, preferably nitrogen, is introduced into the interior of hood (12) so that air is displaced from space (12) surrounded by hood (5). In this way formation of spots by oxidation of the silicon comprising the wafer in the presence of water and oxygen is prevented.