US 2001/0033218 A1 · Multilayer inductor

Abstract

Three thin-film coils having insulating layers therebetween are laminated on the coil winding portion of the core member. A terminal electrode is electrically connected to the end portion of the third thin-film coil. A terminal electrode is electrically connected to the end portion of the first thin-film coil through the lead-out opening portions and separated areas. In this way, the thin-film coils are electrically connected in series between the terminal electrodes. Then, in the thin-film coils, the winding directions of the neighboring coils having an insulating layer therebetween are opposite to each other.

Claims20

Dependent claims

A multilayer inductor comprising:

a core member;
a plurality of thin-film coils spirally wound and laminated on the surface of the core member;
insulating layers provided between each said plurality of thin-film coils;
and
terminal electrodes provided at end portions of the core member, wherein the winding directions of the adjacent thin-film coils having said insulating layers therebetween are opposite to each other, and wherein the plurality of the thin-film coils are electrically connected in series.

2 more elements

Dependencies are inferred from the claim text.

Multilayer inductor

Life of this patent

Multilayer inductor

Life of this patent

Abstract

Claims20