Patent ID: 7531457
Filing Date: 2009-05-12
Classification: B81C

Abstract:
1. A method of fabricating a suspended structure comprising: providing a substrate, the substrate comprising a first patterned photoresist layer thereon; heating the first patterned photoresist layer so as to harden the first patterned photoresist layer and to round an edge of the first patterned photoresist layer; etching the first patterned photoresist layer to adjust a sidewall shape of the first patterned photoresist layer; forming a second patterned photoresist layer on the substrate, the second patterned photoresist layer exposing a part of the first patterned photoresist layer and a part of the substrate; forming a structure layer on the substrate, the first patterned photoresist layer, and the second patterned photoresist layer; performing a lift off process to remove the second patterned photoresist layer and the structure layer above the second patterned photoresist layer; and performing a dry etching process to remove the first patterned photoresist layer so that the structure layer turns into the suspended structure.