Patent ID: 6107202
Filing Date: 2000-08-22
Classification: H01L,Y10S

Abstract:
A process for removing photoresist residue from a semiconductor structure comprising:(a) forming a metal pattern on said semiconductor structure; said metal pattern having spaced metal lines;(b) forming a passivation layer over said metal pattern and forming a keyhole in said passivation layer between said spaced metal lines;(c) applying, exposing and developing a photoresist pattern composed of a positive photoresist on said passivation layer; and forming a photoresist residue in said keyhole; said photoresist pattern composed of a positive photoresist;(d) etching said passivation layer using said photoresist pattern as an etch mask to form first openings in said passivation layer;(e) in a first strip step; treating the semiconductor structure with a first photoresist stripper in a first photoresist strip station; said first photoresist stripper comprised of a first solvent;(f) in a second strip step, treating the semiconductor structure with said first photoresist stripper in a second photoresist strip station;(g) in a third strip step, treating said semiconductor structure with said first solvent while agitating said semiconductor structure in a third solvent station;(h) in a fourth strip step, treating the semiconductor structure with said first solvent in a fourth solvent station and agitating said semiconductor structure; and(i) in a fifth strip step, treating the semiconductor structure with a quick dump rinse in de-ionized water in a fifth rinse station.