Patent ID: 7977757

Claim:
A MEMS element comprising: a substrate; a first electrode formed over the substrate; and a second electrode including a movable portion and an anchor portion, the anchor portion being connected to the movable portion and affixed to the substrate, the movable portion being spaced from the first electrode and facing the first electrode; wherein the movable portion is formed with a plurality of through-holes; wherein the anchor portion is non-perforated; wherein the movable portion is connected to the anchor portion via a support portion which is narrower than the movable portion; wherein the second electrode is a metal film; and wherein the anchor portion is affixed to the substrate via a laminate of layers which includes a first conductor layer made of a same conductor material as the first electrode, a Si-containing layer, a second conductor layer made of a same conductor material as the second electrode, a first barrier metal layer interposed between the first conductor layer and the Si-containing layer, and a second barrier metal layer interposed between the Si-containing layer and the second conductor layer.