Patent ID: 7982558
Filing Date: 2011-07-19
Classification: B81B,B81C,H03H

Abstract:
1. Method of manufacturing a MEMS device, which method comprises the steps of: providing a device substrate with a top side and a bottom side; providing at least one trench in the top side of the device substrate defining the shape of a moveable structure; providing at least one electrically conductive area on the top side of the device substrate and at least parts of the electrically conductive area form at least one moveable electrode attached to the movable structure; providing a dielectric layer on the top side of the device substrate at least partly covering the electrically conductive area; providing and structuring an electrically conductive electrode layer on the top side of the device substrate; providing at least one anchor point in the dielectric layer; providing and structuring an electrically conductive structural layer on the top side of the device substrate and the electrically conductive structural layer anchors the moveable structure at the anchor point; partly removing the dielectric layer through the structured structural layer; removing the device substrate from the bottom side of the device substrate in a defined area underneath the trench defining the shape of the moveable structure at least until the trench defining the shape of the moveable structure is reached and releasing the moveable structure.