Abstract:
A printed circuit board can support different connectors by selectively setting connection components on the printed circuit board without changing wiring of transmission lines or making new vias in the printed circuit board.
Abstract:
An electronic device requires an electronic component to be mounted for the purpose of static shielding. The mounting of such an electronic component raises a problem of avoiding thermal stresses and cracks generated due to the difference between the coefficients of linear expansion of component materials. A positioning recess, a joining-substance thickness ensuring recess, a joining-substance thickness ensuring projection, etc. are formed in a combined manner in an electronic component mount portion of each of leads, whereby spreading of cracks generated in the joining substance can be suppressed and reliability can be improved. Filling a sealing material so as to seal and restrain the electronic component mounted in the electronic component mount portion without leaving voids contributes to further suppressing spreading of cracks generated in the joining substance and ensuring more improved reliability of the joining substance.
Abstract:
A wiring board with a built-in electronic component includes a substrate having an opening portion and having a first surface and a second surface on the opposite side of the first surface, and an electronic component having a third surface and a fourth surface on the opposite side of the third surface and positioned in the opening portion of the substrate such that the third surface faces the same direction as the first surface of the substrate. The electronic component has a curved surface joining the fourth surface and a side surface of the electronic component, and the opening portion of the substrate has a tapered portion formed by a tapered surface of the substrate joining an inner wall of the opening portion and the first surface and tapering from the first surface toward the second surface.
Abstract:
A wiring board has a conductive pattern, an electronic component connected to the conductive pattern by means of a via hole, and a substrate where the electronic component is built into. The connection interface between the via hole and the electronic component inclines toward the connection interface between the via hole and the conductive pattern.
Abstract:
A package substrate includes a core board having a through hole; a circuit layer formed on the core board; a metallic ring disposed on the core board surrounding a contour of the through hole, the metallic ring having opening portions positioned opposite to each other, making the metallic ring having a disconnected manner; and an embedded component installed in the through hole. When the embedded component is deviated in the through hole to allow the electrodes to be in contact with the metallic ring, the electrodes are prevented from coming into contact with the same section of the metallic ring to thereby avoid short circuit.
Abstract:
An electronic device has a multilayer capacitor and a circuit board on which the capacitor is mounted. The capacitor is formed in a nearly rectangular parallelepiped shape and has a first terminal electrode and a second terminal electrode arranged at respective ends thereof. On the circuit board there are a first land to which the first terminal electrode of the capacitor is fixed and a second land to which the second terminal electrode is fixed. The circuit board has a slit formed so as to open on the second land side and surround the first land, when viewed from a direction perpendicular to a principal surface of the circuit board. An imaginary straight line connecting one end and the other end of the slit intersects with the capacitor when viewed from the direction perpendicular to the principal surface of the circuit board.
Abstract:
A technique for processing an electronic apparatus (e.g., manufacturing an assembled circuit board, treating an assembled circuit board, etc.) involves applying encasement material to an area of the circuit board assembly while leaving at least a portion of the circuit board assembly exposed. The technique further involves causing the applied encasement material to harden (e.g., heating the encasement material in a curing oven, applying radiation, providing a chemical catalyst, etc.). Application and hardening of the encasement material may take place shortly after circuit board assembly (e.g., by automated equipment at a manufacturing facility in order to treat newly assembled boards) or at some later time in the field (e.g., by a technician servicing a legacy board).
Abstract:
A resin multilayer substrate includes a component-containing layer and a thin resin layer stacked on a surface of the component-containing layer. The resin multilayer substrate further includes a surface electrode located on a surface opposite to the surface of the thin resin layer stacked on the component-containing layer, a first via conductor provided in the component-containing layer, which includes an end reaching one surface of the component-containing layer, and a second via conductor provided in the thin resin layer, which includes a first end electrically connected to the surface electrode and a second end electrically connected to the via conductor. A portion of the thin resin layer in contact with the second via conductor defines a projection projecting into the first via conductor.
Abstract:
A wiring board with a built-in electronic component includes a core substrate having a penetrating hole formed in the core substrate, an electronic component accommodated in the penetrating hole in the core substrate, a conductive pattern layer formed on a first surface of the core substrate and including a first conductive pattern and a second conductive pattern, and an interlayer insulation layer formed over the conductive pattern layer and the first surface of the core substrate. The second conductive pattern is formed adjacent to a periphery of the penetrating hole and contoured such that a sheet for positioning the electronic component in the penetrating hole is laminated horizontally with respect to the first surface of the core substrate over the penetrating hole.
Abstract:
There is provided a device for electronic components including: a tray provided with electronic components formed by stacking dielectric sheets on which inner conductors are formed; a transfer unit continuously transferring the electronic components moved from the tray; and a magnetic field providing unit providing a magnetic field to the electronic components moved from the transfer unit to align the inner conductors in a direction in which the magnetic field and magnetic resistance are reduced.