Patent ID: 8513043
Filing Date: 2013-08-20
Classification: B81B,B81C

Abstract:
1. A method, comprising: depositing a first insulating layer over a substrate; etching the first insulating layer to expose at least a portion of the substrate and form a via; depositing a first sacrificial layer over the first insulating layer; etching the first sacrificial layer to at least partially define outer boundaries for a cavity to be formed and to expose the substrate through the via; depositing a structural layer on the substrate and on the first sacrificial layer, the structural layer comprising a material having a first recombination coefficient; depositing a second insulating layer on the structural layer, the second insulating layer comprising a material having a second recombination coefficient that is lower than the first recombination coefficient; etching the second insulating layer and the first structural layer to at least partially define a shape of a cantilever device and a outer boundaries of the cavity, and to expose at least a portion of the first sacrificial layer; depositing a second sacrificial layer on the first sacrificial layer and on the second insulating layer; etching the second sacrificial layer such that the first sacrificial layer and the second sacrificial layer collectively define the shape of the cavity to be formed; depositing a third insulating layer over the second sacrificial layer; depositing an electrode layer on the third insulating layer; depositing an encapsulating layer on the electrode layer; etching an opening in the encapsulating layer; introducing an etchant through the opening; and etching the first sacrificial layer and the second sacrificial layer to remove the first sacrificial layer and the second sacrificial layer, to form the cavity and free the cantilever device to move within the cavity.