Patent ID: 8816451
Filing Date: 2014-08-26
Classification: H01L

Abstract:
1. A MEMS structure including a first layer, a second layer, a third layer, a forth layer and a fifth layer stacked in this order along a stacked direction, the MEMS structure comprising: a stacked portion in which the first layer, the second layer, the third layer, the forth layer and the fifth layer are configured to be stacked; a movable portion formed in the third layer and configured to be supported by a beam; a first extending portion formed in the fifth layer and configured to extend from the stacked portion; and a first facing portion formed in the fifth layer, and configured to be connected to the first extending portion and facing the movable portion, wherein: a first space is formed between the first facing portion and the movable portion, a first trench configured to penetrate and completely extend through the first layer, the second layer and the third layer is formed, a second trench configured to penetrate and completely extend through the fifth layer, the forth layer and the third layer is formed, in a view along the stacked direction, the first trench is configured to from a first part of an outline of the movable portion, in the view along the stacked direction, the second trench is configured to form a second part of the outline of the movable portion, and in the view along the stacked direction, at least a part of the first trench is configured to overlap with the first extending portion.