Patent ID: 6991992
Filing Date: 2006-01-31
Classification: H01L

Abstract:
1. A method for forming an inductor in a semiconductor device, comprising the steps of: forming a first negative photoresist layer on a substrate including a lower electrode; performing an exposure process for the first negative photoresist layer to form a first non-exposure region in the lower electrode portion; performing a first post expose bake process after the exposure process for the first negative photoresist layer; covering a second negative photoresist layer on the first negative photoresist layer; performing an exposure process for the second negative photoresist layer to form a second non-exposure region including the top of the first non-exposure region; performing a second post expose bake process after the exposure process for the second negative photoresist layer; implementing a developing process whereby a via hole is formed in the first negative photoresist layer and trenches are formed in the second negative photoresist layer; and burying the via hole and the trenches with a conductive material.