Patent classifications
H05K2201/10636
ELECTRONIC COMPONENT MOUNTING SUBSTRATE, ELECTRONIC COMPONENT MOUNTED BODY, AND METHOD OF MANUFACTURING THE SAME, AS WELL AS ELECTRONIC APPARATUS
An electronic component mounted body includes a substrate, a connection section provided on the substrate, an electronic component having a terminal connected to the connection section, and a solder that fixes the electronic component to the connection section. The connection section has a first region in which the terminal is fixed through the solder, and a second region lower in wettability than the first region, and the second region has an extension region extended to a peripheral edge of the connection section, and a spaced region that projects from the extension region toward the first region and that is provided to be spaced from the peripheral edge.
Electronic component and electronic apparatus
An electronic component includes: an insulator part (10) of rectangular solid shape; a coil element (32) provided inside the insulator part (10); bottom electrodes (40) provided on a bottom face (14) of the insulator part (10) and electrically connected to the coil element (32); a plating layer (62) provided in a manner overlapping each bottom electrode (40) so that its end (64) on the bottom face (14) is away from the end (42) of the bottom electrode (40); a plating layer (60) which is arranged between the bottom electrode (40) and the plating layer (62) and overlaps the bottom electrode (40), and which is constituted by a metal having lower solder wettability and higher melting point than those of the plating layer (62); and an insulation layer (70) provided on the bottom face (14) in a manner covering the end (42) of the bottom electrode (40).
ELECTRONIC COMPONENT
An electronic component includes an electronic element and an interposer board. The electronic element includes a multilayer body and external electrodes each at a respective one of multilayer body end surfaces of the multilayer body and connected to internal electrode layers. The interposer board includes board end surfaces, board side surfaces orthogonal to the board end surfaces, and board main surfaces orthogonal to the board end surface and the board side surface. One of the board main surfaces is located in a vicinity of the electronic element and joined with one of multilayer body main surfaces in a vicinity of the interposer board. The interposer board is an alumina board. The external electrodes each include a first Sn plated layer that covers an outer surface of the interposer board in a vicinity of at least one board end surface.
ELECTRONIC COMPONENT
An electronic component includes an electronic element and an interposer board. The electronic element includes a multilayer body and external electrodes at multilayer body end surfaces of the multilayer body and connected to internal electrode layers. The interposer board includes board end surfaces, board side surfaces orthogonal to the board end surfaces, and board main surfaces orthogonal to the board end surface and the board side surface. One of the board main surfaces is located in a vicinity of the electronic element and joined with one of the pair of multilayer body main surfaces in the vicinity of the board. The interposer board is an alumina board. The board end surfaces each include a metal layer including a Zn-containing layer and a Cu layer on an outer periphery of the Zn-containing layer.
METHOD OF MANUFACTURING ELECTRONIC COMPONENT
A method of manufacturing an electronic component includes applying a paste at two locations on a board main surface of a board made of alumina and applying a glass paste between the two locations, heating the board, cutting two locations where a fired layer is provided, forming a layer on an outer periphery in a vicinity of a board end surface, forming a plated layer on an outer periphery of the layer, forming a second plated layer on an outer periphery of the plated layer, providing a solder on the board main surface in a vicinity of an electronic element, and providing the electronic element on the board main surface and attaching the electronic element to an interposer board.
SEMICONDUCTOR MODULE AND ELECTRONIC APPARATUS
A semiconductor module includes a semiconductor device having a first land, a second land, and a third land, a wiring board having a substrate, and a fourth land, a fifth land, and a sixth land disposed on the main surface of the substrate, a chip component having a first electrode and a second electrode disposed across a distance in the longitudinal direction and being disposed between the wiring board and the semiconductor device, a first solder joint for bonding the first land, the fourth land, and the first electrode, a second solder joint for bonding the second land, the fifth land, and the second electrode, and a third solder joint for bonding the third land and the sixth land. The volume of the first solder joint and the volume of the second solder joint are each larger than the volume of the third solder joint.
Multi-layer ceramic electronic component and circuit board
A multi-layer ceramic electronic component includes: a ceramic body including first and second internal electrodes laminated in a first axis direction, first and second main surfaces facing in the first axis direction, and first and second end surfaces facing in a second axis direction orthogonal to the first axis, the first and second internal electrodes being drawn to those end surfaces; a first external electrode covering the first end surface and extending to the first main surface; and a second external electrode covering the second end surface and extending to the first main surface. Each external electrode includes a first region including a first outermost layer mainly containing tin and extending from the end surface to the first main surface, and a second region free from an outermost layer mainly containing tin and disposed adjacent to the first region in the first axis direction on the end surface.
CAPACITOR ASSEMBLY
Capacitor assembly, comprising a printed circuit board comprising a first conductive trace and a second conductive trace, and a first row of capacitors comprising a plurality of surface mounted capacitor elements. Each of the plurality of surface mounted capacitor elements comprises a pair of outer electrodes, one of the pair being mounted to the first conductive trace and defining a first junction, and the other one being mounted to the second conductive trace defining a second junction. The first junction and the second junction define a first capacitor longitudinal axis. The first conductive trace has a first current flow direction with a first oblique angle relative to the first capacitor longitudinal axis.
MULTILAYER CERAMIC CAPACITOR
A multilayer ceramic capacitor includes a capacitor main body including a multilayer body and external electrodes, the multilayer body including dielectric layers and internal electrode layers stacked alternately, each of the external electrodes being provided on an end surface in a length direction of the multilayer body and being connected to the internal electrode layers, and two interposers on one surface in a stacking direction of the capacitor main body and spaced apart from each other in the length direction, the interposers including bonding surfaces bondable to the one surface of the capacitor main body and including inner edge portions which are opposite to each other and each having a length longer than a length in a width direction of the multilayer body.
HIGH-PERFORMANCE CAPACITOR PACKAGING FOR NEXT GENERATION POWER ELECTRONICS
A capacitor packaging having a central termination and three or more capacitors (or groups of capacitors) arranged about the central termination. The electrical flow paths between the termination and the capacitors or groups of capacitors are of substantially the same length. The capacitors or groups of capacitors may be arranged in a generally circular pattern with the termination centered on the center. The termination may include first and second terminals. The capacitors may be mounted to a printed circuit board (“PCB”) with traces on opposite surfaces of the PCB providing electrical flow paths from the terminals to opposite legs of the capacitors. The capacitor packaging may include a primary PCB with a first circular arrangement of capacitors and a secondary PCB with a second circular arrangement of capacitors. The capacitors may be sandwiched between the PCBs with the second arrangement of capacitors disposed concentrically inwardly of the first arrangement.