Patent ID: 8861062

Claim:
A MEMS device comprising: a rotor comprising a first plurality of rotor teeth and a second plurality of rotor teeth formed in at least two layers of silicon-on-insulator (SOI) substrate, wherein each rotor tooth belonging to the first plurality of rotor teeth is formed in a first layer of the rotor's at least two layers of SOI substrate, and wherein each rotor tooth of the second plurality of rotor teeth is formed in a second layer of the rotor's at least two layers of SOI substrate; and a stator comprising a first plurality of stator teeth and a second plurality of stator teeth formed in at least two layers of SOI substrate, wherein each stator tooth belonging to the first plurality of stator teeth is formed in a first layer of the stator's at least two layers of SOI substrate, and each stator tooth of the second plurality of stator teeth is formed in a second layer of the stator's at least two layers of SOI substrate.