Patent ID: 6377155
Filing Date: 2002-04-23
Classification: H01H

Abstract:
A microfabricated electromagnet, comprising:a core comprising magnetic material, said core having a first cavity, a second cavity, and a third cavity, said first cavity separated from said second cavity by a first section of said core, said second cavity separated from said third cavity by a second section of said core; and a conductive coil passing through said first, second, and third cavities and encircling said first and second sections of said core, wherein said conductive coil forms a plurality of planar turns as said conductive coil encircles said first and second sections of said core, wherein each planar turn of said conductive coil is planar with a vertical portion of said conductive coil interconnecting said planar turns of the conductive coil, and wherein said conductive coil formed via microfabrication techniques, wherein a first portion of said conductive coil that passes through said first cavity is encircled by said core, wherein a second portion of said conductive coil that passes through said second cavity is encircled by said core.