Micromotor in a ceramic substrate

Details Micromotor in a ceramic substrate Micromotor in a ceramic substrate

1997-06-03

1998-07-21

Stephan, Steven C.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, 310 89, 310 91, 310254, 310258, H02K 700, H02K 900, H02K 500

Patent

active

057838798

ABSTRACT:
A micromotor in a ceramic substrate, including a unitary ceramic body providing a micromotor substrate which has been formed with a first internal cavity and a plurality of second internal cavities and a recess, a ferromagnetic stator formed in the first internal cavity, and embedded conductive coil structures formed in the second internal cavities and disposed in operative relationship to the ferromagnetic stator, and a rotor mechanism mounted in the recess and in operative relationship to the ferromagnetic stator and having a rotor member formed of a hard magnetic material which is free to rotate so that when voltages are applied to the coil structures, a field is created through the ferromagnetic stator which provides a torque to the rotor member causing it to rotate.

REFERENCES:
patent: 3812442 (1974-05-01), Muckelroy
patent: 3833872 (1974-09-01), Marcus et al.
patent: 4384778 (1983-05-01), Lee et al.
patent: 5312674 (1994-05-01), Haertling et al.
patent: 5399415 (1995-03-01), Chen et al.
patent: 5483115 (1996-01-01), Haisma et al.
patent: 5525941 (1996-06-01), Roshen et al.
patent: 5682076 (1997-10-01), Zumeris
patent: 5711221 (1998-01-01), Compera et al.

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