Patent ID: 6780570
Filing Date: 2004-08-24
Classification: B81B,B81C,G03F

Abstract:
A method of fabricating a suspended microstructure with a sloped support, comprising the steps of:(a) providing a member having three stacked up layers including a first substrate layer, a second temporary layer and a third photoresist layer; (b) photolithographically transferring a sloped pattern to the third photoresist layer by means of a grey scale mask; (c) etching the second layer through the third layer resulting from step (b) to obtain a surface with at least one continuous slope with a predetermined angle with respect to the first substrate layer; (d) depositing a fourth layer on the previous layers; (e) etching the fourth layer to obtain the sloped support; (i) depositing a fifth planarization layer for covering the previous layers except for a top portion of the sloped support; (ii) depositing a sixth layer on the previous layers; and (iii) etching the sixth layer to obtain a suspended microplatform; (g) removing the second layer and the fifth layer to obtain the suspended microstructure with the sloped support.