Title:
Fully Integrated Magnetic Micromotors And Methods For Their Fabrication
Fully Integrated Magnetic Micromotors And Methods For Their Fabrication
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Abstract
A planar fully integrated variable reluctance micromotor (10) is microfabricated on a substrate base (18). The micromotor includes a pin (19), rotor (12) with radially extending poles (16), and a stator (20) having a plurality of poles (21) configured in pairs (22) circumferentially spaced about the rotor. The rotor is microfabricated in place, or in situ, contiguous to the substrate base. The pairs of stator poles include a multilevel core (26) wrapped around a meander conductor (27) which is connected to bonding pads (32). The variable reluctance micromotor is particularly adapted to operating as a micropump (45) for conductive fluids.
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1/20/1998
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Patent