Patent ID: 7071805
Filing Date: 2006-07-04
Classification: H01F,H02K,Y10S,Y10T

Abstract:
1. A motor comprising: a multilayer ceramic coil formed by a plurality of laminated ceramic layers on which patterns are printed, said patterns being formed of conductive paste; wherein said multilayer ceramic coil includes a first ceramic layer having a plurality of electrically independent coil patterns printed thereon, said coil patterns being formed of conductive paste, a second ceramic layer having an electrical crossing pattern printed thereon, said crossing pattern being formed of conductive paste, and a third ceramic layer having a terminal pattern printed thereon, said terminal pattern being formed of conductive paste; wherein said first, second and third ceramic layers are arranged so as to constitute a single multilayer ceramic structure having a plurality of phases of coils, and wherein said coil patterns, said crossing pattern, and said terminal pattern are electrically connected via through-holes in said ceramic layers; and wherein said terminal pattern of said third ceramic layer is formed with a common terminal and with a plurality of individual terminals equal in number to said plurality of phases of coils, said terminal pattern being electrically connected to each of said coil patterns.