Patent classifications
H05K3/3442
CERAMIC ELECTRONIC COMPONENT, CIRCUIT SUBSTRATE ARRANGEMENT, AND METHOD OF MANUFACTURING CERAMIC ELECTRONIC COMPONENT
A ceramic electronic component includes an element body, a first external electrode, and a second external electrode. The element body includes a dielectric, at least one first internal electrode, and at least one second internal electrode laminated over the first internal electrode via the dielectric interposed therebetween. The element body has a top surface, a bottom surface, a pair of side surfaces, a first end surface, and a second end surface, thereby the element body having a generally cuboid shape. The first internal electrode is exposed on the first end surface. The second internal electrode is exposed on the second end surface. The side surfaces of the element body are concavely curved along a longitudinal direction, so that the element body has a longitudinal central part at which a width is less than a width at the end surface. The first external electrode is formed on the first end surface and electrically connected with the first internal electrode. The second external electrode is formed on the second end surface and electrically connected with the second internal electrode.
Method of manufacturing electronic module, electronic module, and electronic device
A method of manufacturing an electronic module includes supplying paste to an electronic component and/or a wiring board. The paste includes solder powder and first resin. The method includes supplying second resin to the electronic component and/or the wiring board. The method includes placing one of the electronic component and the wiring board on another. The method includes curing the second resin to form a second resin portion. The method includes heating the paste to a temperature equal to or higher than a solder melting point after the second resin portion is formed. The method includes solidifying molten solder at a temperature lower than the solder melting point to form a solder portion that bonds the electronic component and the wiring board. The method includes curing the first resin after the solder portion is formed, to form a first resin portion.
Electronic component and board having the same mounted thereon
A multilayer electronic component includes: a capacitor body having first to sixth surfaces, and including first and second internal electrodes; first and second external electrodes including first and second connection portions and first and second band portions; and a connection terminal including first and second land portions disposed on the first and second band portions, respectively, and having first and second cut-out portions, respectively. First and second solder accommodating portions are provided by the first and second cut-out portions in lower portions of the first and second band portions, respectively, and, 0.2≤SA1/BW1≤0.5 and 0.2≤SA2/BW2≤0.5 which in BW1 is an area of the first band portion, SA1 is an area of the first solder accommodating portion, BW2 is an area of the second band portion, and SA2 is an area of the second solder accommodating portion.
MULTI-LAYER CERAMIC ELECTRONIC COMPONENT, MULTI-LAYER CERAMIC ELECTRONIC COMPONENT MOUNTING SUBSTRATE, AND MULTI-LAYER CERAMIC ELECTRONIC COMPONENT PACKAGE
A multi-layer ceramic electronic component includes: a ceramic body that includes internal electrodes laminated in a first direction, and a pair of main surfaces including a center region facing in the first direction; and a pair of external electrodes connected to the internal electrodes and facing each other in a second direction orthogonal to the first direction, a dimension of the ceramic body in the first direction being 1.1 times or more and 1.6 times or less a dimension of the ceramic body in a third direction orthogonal to the first direction and the second direction, the center region being formed at a center portion of at least one of the pair of main surfaces in the second direction.
SEMICONDUCTOR DEVICE, POWER CONVERSION APPARATUS, MOVING BODY, AND METHOD FOR PRODUCING SEMICONDUCTOR DEVICE
An object of the present invention is to provide a technique capable of suppressing displacement of an electronic component and a solder ball without using a jig. A semiconductor device includes an insulating substrate, an electronic component, and solder. A metal pattern and a semiconductor element are disposed on the insulating substrate. The metal pattern has a first recess and a second recess that are provided side by side. A part of the electronic component is disposed in the first recess. The solder connects the metal pattern disposed on the insulating substrate and the electronic component.
SOLDERING OF END CHIP COMPONENTS IN SERIES
A method for printed circuit board design rework utilizing two components in series, the method includes selecting a first chip component and a second chip component for placement on an original land location previously occupied by an original chip component. The method further includes placing the first chip component and the second chip component on a chip component support structure. The method further includes soldering a first end of the first chip component to a first end of the second chip component. Responsive to transferring the first chip component and the second chip component to the original land location, the method further includes soldering a second end of the first chip component to a first land of the original land location. The method further includes soldering a second end of the second chip component to a second land of the original land location.
Passive component and electronic device
In an exemplary embodiment, a passive component, which is a surface mounting component, includes: a substrate body having insulating property; an internal conductor built into the substrate body; and at least one external electrode provided on a planar mounting face of the substrate body and electrically connected to the internal conductor; wherein the external electrode has a face parallel with the planar mounting face of the substrate body, and a concaved part which is inwardly concaved relative to the parallel face toward the substrate body and is located, as viewed in a direction perpendicular to the parallel face, inside the parallel surface so as to be surrounded by the parallel surface.
COIL COMPONENT, CIRCUIT BOARD, AND ELECTRONIC DEVICE
A coil component includes a base body containing metal magnetic particles and a binder binding together the metal magnetic particles and having a first surface extending along a coil axis and a second surface opposing the first surface, a first external electrode, a second external electrode, and a coil conductor electrically connected to the first and second external electrodes. In one embodiment, the coil conductor has a winding portion, the winding portion has first conductor portions and one or more second conductor portions smaller in number than the first conductor portions. The first and second conductor portions alternate with and are connected to each other. A ratio of a first distance between the first conductor portions and the first surface to a second distance between the second conductor portions and the second surface is from 0.5 to less than 1.
COIL COMPONENT, CIRCUIT BOARD, AND ELECTRONIC DEVICE
A coil component according to one or more embodiments includes a base body having first to sixth surfaces, and a coil conductor including a winding portion that extends around a coil axis intersecting the first and second surfaces. The winding portion includes first, second, third, and fourth portions facing the third, fourth, fifth, and sixth surfaces, respectively when viewed from a direction of the coil axis. The radii of curvature of the first and second portions are both smaller than the radii of curvature of the third and fourth portions. When viewed from the direction of the coil axis, a distance between the first portion and the third surface is larger than a distance between the third portion and the fifth surface.
Multilayer ceramic capacitor and board having the same mounted thereon
A multilayer capacitor includes a capacitor body including first and second dielectric layers and internal electrodes, and including first to sixth surfaces; first and second external electrodes disposed on the fifth and sixth surfaces; and third and fourth external electrodes disposed on the third and fourth surfaces. The internal electrodes include: a first internal electrode disposed on the first dielectric layer and connected to the first and second external electrodes; a second internal electrode disposed on the first dielectric layer and connected to the third external electrode; a third internal electrode disposed on the first dielectric layer and connected to the fourth external electrode; and a fourth internal electrode disposed on the second dielectric layer and overlapping at least a portion of the first to third internal electrodes.