Patent ID: 11939214
Assignee: SOITEC
Field: Micro-structural and nano-technology (Chemistry)
Classification: CPC B | IPC B

Claim 13:
14. A method of fabricating a MEMS device, comprising:
providing a structure including a planar layer on a surface of a carrier substrate, the surface of the carrier substrate having elementary cavities therein located under the planar layer and partitions delimiting each elementary cavity, the partitions having upper surfaces that form all or a portion of the surface of the carrier substrate;
forming at least one aperture through the planar layer; and
removing some of the partitions located inside a contour of a group of adjacent elementary cavities and forming a useful cavity without removing at least some of the partitions located outside the contour, and freeing a portion of the planar layer suspended over the useful cavity, the portion of the planar layer defining a membrane of the MEMS device.