Patent ID: 6420098
Filing Date: 2002-07-16
Classification: G03F,Y10S

Abstract:
A method for manufacturing semiconductor devices on a wafer comprising the steps of:coating a photoresist onto said wafer, heating said wafer to a prebake temperature for outgassing a solvent of the photoresist, exposing said wafer to deep UV light for chemically modifying said photoresist in patterned areas, heating said wafer to a post exposure bake temperature for activating a chemical reaction, developing said photoresist, metrology inspection, and further processing the wafer after metrology inspection by placing the wafer in a chamber that is a separate tool from equipment used for all prior manufacturing steps, stabilizing the photoresist by introducing ammonia/amine chemicals into the chamber and exposing the photoresist to the amino/amine chemicals, pumping the chamber to remove the amino/amine chemicals and using the same chamber to perform in situ stabilizing and either etching of the wafer or implanting ions into the wafer, wherein said amino/amine chemicals are isolated from contamination of equipment performing photoresist coating and developing.