Patent ID: 6368985
Filing Date: 2002-04-09
Classification: G03F,H01L

Abstract:
A method for processing semiconductor wafers comprising:providing a first coater and developer track having a first coater station and a first developer station; providing a second coater and developer track having a second coater station and a second developer station; providing a single stepper between the first coater and developer track and the second coater and developer track; coating a first set of wafers with a photoresist material in the first coater station; exposing the first set of wafers with a light source in the stepper; developing the first set of wafers with a developer in the first developer station; coating a second set of wafers with a second photoresist material in the second coater station; exposing the second set of wafers with the light source in the stepper; and developing the second set of wafers with the developer in the second developer station.