Patent ID: 6548111
Filing Date: 2003-04-15
Classification: H01L

Abstract:
A method for uniformly coating a microelectronic substrate having a first surface and a second surface opposite the first surface, the method comprising:positioning the microelectronic substrate on a rotatable chuck; prior to positioning the microelectronic substrate on the rotatable chuck, generating a temperature distribution over the first surface by directing a fluid directly against the second surface of the microelectronic substrate; disposing a liquid on the first surface of the microelectronic substrate; rotating the microelectronic substrate about an axis generally perpendicular to the first surface; and controlling a temperature of the first surface of the microelectronic substrate by controlling a first rate of heat transferred directly to or from a first portion of the second surface of the microelectronic substrate and controlling a second rate of heat transferred directly to or from a second portion of the second surface while the microelectronic substrate rotates, the second rate being different than the first rate, wherein controlling a temperature includes directing a fluid through a nozzle directly against the substrate, and wherein directing a fluid includes directing a gas directly against the substrate.