Patent ID: 6778058
Filing Date: 2004-08-17
Classification: H01L,H05K,Y10T

Abstract:
An embedded three-dimensional inductor in a low temperature, co-fired ceramic (LTCC) substrate, the inductor comprising:a tape layer with a cavity; an inductor coil within the cavity, wherein the inductor coil comprises: a first winding; and at least part of a second winding spaced vertically apart from the first winding, wherein part of the at least part of the second winding is printed on part of the first winding to form an electrical connection between the first winding and the second winding, wherein the at least part of the second winding is a complete second winding; a dielectric layer within the cavity between the first winding and the at least part of the second winding, wherein the at least part of the second winding is printed on the dielectric layer; a third winding in the cavity vertically spaced from the second winding; and a second dielectric layer within the cavity separating the second winding from the third winding, wherein the third winding is printed on the second dielectric layer and where at least part of the third winding is printed on at least part of the second winding to create an electrical connection between the third winding and the second winding.