Patent ID: 7033515

Claim:
A method for manufacturing a microstructure having a thin-walled portion with use of a material substrate having a laminated structure which comprises: a first conductor layer; a second conductor layer; a third conductor layer; a first insulating layer which is patterned to have a first masking part for covering a thin-wall forming region of the second conductor layer, the first insulating layer being interposed between the first conductor layer and the second conductor layer; and a second insulating layer which is patterned to have a second masking part for covering the thin-wall forming region of the second conductor layer, the second insulating layer being interposed between the second conductor layer and the third conductor layer; wherein the method comprises forming the thin-walled portion in the second conductor portion by etching the material substrate from the first conductor layer down to the second insulating layer via a mask pattern including a non-masking region corresponding to the thin-wall forming region of the second conductor layer.