Patent ID: 6747450
Filing Date: 2004-06-08
Classification: G01R,H05K

Abstract:
A weak-magnetic field sensor using printed circuit board manufacturing technique comprising:a magnetic layer which is patterned in a certain shape; a first stacked board which is stacked on a lower surface of the magnetic layer and which is formed with a first driving pattern; a second stacked board which is stacked on an upper surface of the magnetic layer and which is formed with a second driving pattern, the first and second driving patterns being electrically connected to each other; a third lower stacked board which is stacked on a lower surface of the first stacked board and which is formed with a first pickup pattern; and a third upper stacked board which is stacked on an upper surface of the second stacked board and which is formed with a second pickup pattern, the third lower and upper stacked boards being electrically connected to each other.