Patent ID: 7901969

Claim:
A method for manufacturing a plurality of micro-electrical-mechanical-systems(MEMS) devices on a semiconductor wafer wherein each having at least one movable element comprising: depositing and patterning a first sacrificial layer into a plurality of support structures followed by forming a depositing and patterning a plurality of hinges along a vertical and horizontal sidewalls of said support structures; depositing a second sacrificial layer covering over the hinges and said support structures followed by etching back said second sacrificial layer back to a top surface of said hinges; depositing and patterning a reflective surface on top of the second sacrificial layer contacting the top surface of said hinge thus forming a plurality of movable elements; and depositing an inorganic protection layer on top of the reflective surface and the second sacrificial layer covering over the movable elements followed by dicing the semiconductor wafer for separating the semiconductor wafer into the plurality of MEMS devices from the wafer; and removing the inorganic protection layer and etching off the first and second sacrificial layers after dicing and separating the semiconductor wafer into the MEMS devices.