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.
Type:
Grant
Filed:
June 3, 1997
Date of Patent:
July 21, 1998
Assignee:
Eastman Kodak Company
Inventors:
Edward P. Furlani, Syamal K. Ghosh, Dilip K. Chatterjee