H01F1/14

Coil component

A coil component includes a body including a coil including lead portions at both ends thereof and a magnetic material sealing the coil and external electrodes disposed on outer surfaces of the body and connected to the lead portions, respectively. An outer surface of the coil including at least one of an upper surface, a lower surface, and a side surface of the coil includes a surface area increasing portion.

Coil component

A coil component includes a body, a coil part embedded in the body, and an insulating layer covering the body. First and second plating electrodes are disposed between the body and the insulating layer, are connected to the coil part, and are disposed to be spaced apart from each other on one surface of the body. First and second through electrodes penetrate through the insulating layer to thereby be connected to the first and second plating electrodes, respectively.

Coil component

A coil component includes a body, a coil part embedded in the body, and an insulating layer covering the body. First and second plating electrodes are disposed between the body and the insulating layer, are connected to the coil part, and are disposed to be spaced apart from each other on one surface of the body. First and second through electrodes penetrate through the insulating layer to thereby be connected to the first and second plating electrodes, respectively.

GRAIN ORIENTED ELECTRICAL STEEL SHEET AND PRODUCING METHOD THEREOF

A grain oriented electrical steel sheet includes: by mass %, 0.010% or less of C; 2.50 to 4.00% of Si; 0.010% or less of acid soluble Al; 0.012% or less of N; 1.00% or less of Mn; 0.020% or less of S; and a balance consisting of Fe and impurities, and has a tension-insulation coating at steel sheet surface and a SiO.sub.2 intermediate oxide film layer with an average thickness of 1.0 nm to 1.0 μm at an interface between the tension-insulation coating and the steel sheet surface. In the grain oriented electrical steel, when a surface of the intermediate oxide film layer is analyzed by an infrared reflection spectroscopy, a peak intensity I.sub.A at 1250 cm.sup.−1 and a peak intensity I.sub.B at 1200 cm.sup.−1 satisfy I.sub.B/I.sub.A≥0.010.

GRAIN ORIENTED ELECTRICAL STEEL SHEET AND PRODUCING METHOD THEREOF

A grain oriented electrical steel sheet includes: by mass %, 0.010% or less of C; 2.50 to 4.00% of Si; 0.010% or less of acid soluble Al; 0.012% or less of N; 1.00% or less of Mn; 0.020% or less of S; and a balance consisting of Fe and impurities, and has a tension-insulation coating at steel sheet surface and a SiO.sub.2 intermediate oxide film layer with an average thickness of 1.0 nm to 1.0 μm at an interface between the tension-insulation coating and the steel sheet surface. In the grain oriented electrical steel, when a surface of the intermediate oxide film layer is analyzed by an infrared reflection spectroscopy, a peak intensity I.sub.A at 1250 cm.sup.−1 and a peak intensity I.sub.B at 1200 cm.sup.−1 satisfy I.sub.B/I.sub.A≥0.010.

SOFT MAGNETIC ALLOY AND MAGNETIC DEVICE

Provided is a soft magnetic alloy having a composition of a compositional formula (Fe.sub.(1(+))X1.sub.X2.sub.).sub.(1(a+b+c+d+e))P.sub.aC.sub.bSi.sub.cCu.sub.dM.sub.e. X1 is one or more selected from a group consisting of Co and Ni, X2 is one or more selected from a group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, 0, and rare earth elements, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W and V. 0.050a0.17, 0<b<0.050, 0.030<c0.10, 0<d0.020, 0e0.030, 0, 0, and 0+0.50.

Powder mixture for powder magnetic core, and powder magnetic core

The present invention pertains to: a powder mixture for powder magnetic core obtained by mixing a lubricant, a solid lubricant, and a soft magnetic powder coated with an insulating coating, wherein a lubricant content is 0.1% by mass or more and 0.8% by mass and a solid lubricant content is 0.01% by mass or more and 0.2% by mass or less; and a powder magnetic core in which the powder mixture is used.

Powder mixture for powder magnetic core, and powder magnetic core

The present invention pertains to: a powder mixture for powder magnetic core obtained by mixing a lubricant, a solid lubricant, and a soft magnetic powder coated with an insulating coating, wherein a lubricant content is 0.1% by mass or more and 0.8% by mass and a solid lubricant content is 0.01% by mass or more and 0.2% by mass or less; and a powder magnetic core in which the powder mixture is used.

System in package device including inductor

Described examples include a system in package (SIP) device, including: a first leadframe having a first surface and a second surface opposite the first surface; an integrated circuit die including solder bumps on a first surface and having a second opposite surface, the solder bumps mounted to the second surface of the first leadframe; a second leadframe having a first surface including a die pad portion, and a second opposite surface, the die pad portion attached to the second surface of the integrated circuit die; and an inductor mounted to the first surface of the first leadframe, the inductor having terminals with exterior portions electrically connected and mechanically connected to the first surface of the first leadframe, the inductor terminals spaced from one another by a portion of an inductor body, the portion of the inductor body between the inductor terminals spaced from the first surface of the first leadframe by a gap of at least 100 ms.

Coil component
10923265 · 2021-02-16 · ·

A coil component includes: a body portion; and a coil portion disposed in the body portion, wherein the coil portion includes a support member and a first coil layer disposed on a first surface of the support member, the first coil layer including a first electrode portion led out to a first end surface of the body portion, the support member includes first and second insulators and a metal core disposed between the first and second insulators, and a first end portion of the metal core is led out to the first end surface of the body portion to which the first electrode portion of the first coil layer is led.