Patent ID: 7570145

Claim:
A soft magnetism thin film inductor, comprising: a first dielectric layer; a spiral conductive layer disposed on the first dielectric layer, wherein a starting point of the spiral conductive layer is in a center of the spiral, and a destination point of the spiral conductive layer is in outermost peripheral areas of the spiral; a second dielectric layer disposed on the spiral conductive layer; and a magnetic multi-element alloy film disposed on the second dielectric layer, wherein the magnetic multi-element alloy film is composed of 3˜13 types of elements, wherein a general formula of a composition of the magnetic multi-element alloy film is AXM, A is selected from one or more groups consisting of Fe, Co and Ni, X is selected from one or more groups consisting of Si and B, M is selected from one or more groups consisting of Hf, Cu, Al, Ta, Nb, Cr, Sn, Zr, Ti, Pd, Au, Pt, Ag, Ru, Mo, V and Mn, the magnetic multi-element alloy film doesn't include O, N and rare earth element, and A accounts for 70˜90 at. % of all atomic elements.