US 2013/0154785 A1 · LAMINATED TYPE INDUCTOR ELEMENT AND MANUFACTURING METHOD THEREFOR

Abstract

In a laminated inductor element, a magnetic ferrite layer sandwiched between two conductor patterns is thinner than other magnetic ferrite layers. Therefore, a crack occurs in the magnetic ferrite layer due to firing. As a result of the occurrence of this crack, a stress applied to each layer is relaxed, and it becomes possible to avoid warpage, a crack, or the like. In addition, in the laminated type inductor element, the two conductor patterns are electrically connected by two via holes, and subjected to a same potential. Since the two conductor patterns correspond to a same wiring pattern and a coil of coil conductor is defined by the two conductor patterns, even if upper and lower coil conductors are electrically in contact with each other due to the crack, the two conductor patterns are not put into a short-circuited state.

Claims20

Dependent claims

A laminated inductor element comprising:

a laminated body including a plurality of layers including a magnetic substance and laminated on each other in a lamination direction;
and
an inductor including coil conductors provided between the plurality of layers of the laminated body and connected in the lamination direction;
wherein
in the lamination direction, at least one portion is provided in which an interval between the coil conductors is narrower than another interval, and coil conductors located over and under the at least one portion are electrically connected so as to be subjected to a same potential.

2 more elements

Dependencies are inferred from the claim text.

Laminated type inductor element and manufacturing method therefor

Life of this patent

Laminated type inductor element and manufacturing method therefor

Life of this patent

Abstract

Claims20