Patent ID: 6540928
Filing Date: 2003-04-01
Classification: B82Y,C25D,G11B,H01F,Y10T

Abstract:
A method for fabricating a multi-layer electroplating mask for the formation of a submicrometer structure, the multi-layer electroplating mask including a substrate, a seedlayer deposited on said substrate, a first photoresist layer deposited on said seedlayer, a hard mask layer deposited on said first photoresist layer, and a second photoresist layer deposited on said hard mask layer, said first photoresist layer being thicker than said second photoresist layer, comprising:performing a photoresist etch of said first photoresist layer to define a trench having vertical sidewalls; and after said photoresist etch, performing a silylation of said trench for a predetermined period of time to narrow said trench in width.