Patent ID: 8748206

Claim:
A micro-electromechanical system (MEMS) apparatus, the apparatus comprising: a first double chip comprising: a first base layer; a first device layer bonded to the first base layer, the first device layer comprising a first set of MEMS devices; and a first top layer bonded to the first device layer, wherein the first set of MEMS devices is hermetically isolated; and a second double chip comprising: a second base layer; a second device layer bonded to the second base layer, the second device layer comprising a second set of MEMS devices; and a second top layer bonded to the second device layer, wherein the second set of MEMS devices is hermetically isolated, a getter, hermetically sealed between the first double chip and the second double chip, the getter configured to absorb air within the MEMS apparatus, the getter being exposed to air that circulates around at least one of the first set of MEMS devices and the second set of MEMS devices; wherein a first top surface of the first top layer is bonded to a second top surface of the second top layer.