Patent ID: 7042319
Filing Date: 2006-05-09
Classification: H01F,H01H

Abstract:
1. A thin-film electromagnet comprising: a magnetic yoke and a thin-film coil, characterized in that said magnetic yoke is comprised of a first magnetic yoke and a second magnetic yoke making contact with said first magnetic yoke, said first magnetic yoke is located at a center of a winding of which said thin-film coil is comprised, and said second magnetic yoke is arranged above or below said thin-film coil such that said second magnetic yoke faces said thin-film coil, and overlaps at least a part of said thin-film coil, wherein said thin-film electromagnet has magnetic poles at a surface of said first magnetic yoke which surface is opposite to a surface at which said first and second magnetic yokes make contact with each other, and further at an outer surface of said second magnetic yoke.