Patent ID: 8703516

Claim:
A method of manufacturing a micro-electromechanical system (MEMS) device, the method comprising: forming a buried insulating material by selectively implanting oxygen or nitrogen into a first region of a substrate, a top surface of the buried insulating material being vertically spaced apart from the top surface of the substrate; forming a trench ring by removing a top portion of the substrate over a perimeter of the buried insulating material; filling at least a portion of the trench ring with at least one insulating material to form an isolation ring in the top portion of the substrate; using an epitaxial growth process to locally increase a thickness of the top portion of the substrate in the first region but not a second region of the substrate, the second region being adjacent to the first region and the second region not comprising the buried insulating material; forming a moveable element in the top portion of the substrate within the isolation ring; and forming a complementary metal oxide semiconductor (CMOS) device in the second region of the substrate.