Patent ID: 7140092
Filing Date: 2006-11-28
Classification: H01F,H01L,Y10T

Abstract:
1. A method for manufacturing a magnetic inductor core, the method comprising: depositing layers of ferromagnetic material and at least a first layer of sacrificial conductive material such that a first stack of ferromagnetic layers is formed, with the layers of ferromagnetic material of the first stack being spaced apart from each other, and a second stack of ferromagnetic layers is formed, with the layers of ferromagnetic material of the second stack being spaced apart from each other, spacing between the layers of ferromagnetic material of the first stack being established by the sacrificial conductive material located between and separating the layers of ferromagnetic material of the first stack, spacing between the layers of ferromagnetic material of the second stack being established by the sacrificial conductive material located between and separating the layers of ferromagnetic material of the second stack, the first stack being spaced from the second stack; depositing a support structure such that the support structure is attached to each of the layers of ferromagnetic material of the first stack and to each of the layers of ferromagnetic material of the second stack; and removing the sacrificial conductive material such that the sacrificial material no longer maintains separation between the layers of ferromagnetic material of the first stack, the first stack and the second stack of ferromagnetic layers being mechanically supported by the support structure such that the support structure maintains separation between the layers of ferromagnetic material of the first stack and between the layers of ferromagnetic material of the second stack.