Patent ID: 6248175
Filing Date: 2001-06-19
Classification: G03F,H01L

Abstract:
A system for applying a developer material onto a photoresist material layer disposed on a substrate to provide a uniformly thick layer of developer material, the developer material being spincoated onto the substrate by a rotating chuck coupled to a motor to form the layer of developer material, the system comprising:a nozzle adapted to apply a predetermined volume of developer on the photoresist material layer along a linear path having a length approximately equal to the diameter of the photoresist material layer; anda movement system adapted to move the nozzle to a first position offset from a central region of the photoresist material layer for applying a first predetermined volume of developer material to the photoresist material layer while the developer material is spin coated and adapted to move the nozzle to a second position offset from the central region for applying a second predetermined volume of developer material to the photoresist material layer while the developer material is spin coated, the first position being located on an opposite side of the central region with respect to the second position.