Abstract:
In a component-embedded substrate, a component and wiring block units are embedded in a component-embedded layer; conductive layers are located on all surfaces of the wiring block units; the component and the wiring block units are arranged such that lower surface side conductive layers of the wiring block units and electrodes of the component contact lower surface side wiring layers; via-hole conductors are located in respective upper positions relative to upper surface side conductive layers of the wiring block units and the electrodes of the component; and upper surface side wiring layers of the component-embedded layer are thus electrically connected to upper surface side conductive layers of the wiring block units, and the electrodes of the component by the via-hole conductors.
Abstract:
An electronic device which includes a feedthrough capacitor mounted on a front surface of a substrate. A feedthrough electrode penetrates a laminate (body of the capacitor). External electrodes are electrically connected to opposite ends of the feedthrough electrode. A capacitor electrode is disposed to form capacity in cooperation with the feedthrough electrode. A wiring conductor is formed on a rear surface of the substrate or inside the substrate, and via-hole conductors are connected to the wiring conductor. The feedthrough electrode and the external electrodes constitute a first current path. The wiring conductor and the via-hole conductors constitute a second current path electrically connected in parallel to the first current path.
Abstract:
A piezoelectric transformer includes a piezoelectric transforming element supported at its vibrational node region N on a base plate through a resilient adhesive member. Input electrodes of the piezoelectric transforming element are electrically connected to input electrode connecting lands of the base plate through a conductive adhesive which is adapted to be freely deformed according to the vibration of the piezoelectric transforming element. An output electrode of the piezoelectric transforming element is electrically connected to an output electrode connecting land of the base plate through a lead wire or a conductive adhesive.
Abstract:
A chip-component structure includes an interposer and a multilayer capacitor mounted thereon. The interposer includes a substrate, a component connecting electrode, an external connection electrode, and a side electrode. The component connecting electrode and the external connection electrode are electrically connected by the side electrode. The component connecting electrode is joined to an external electrode of the multilayer capacitor. The substrate includes a communication hole that communicates between opposite spaces opening in both principal surfaces of the substrate.
Abstract:
In a component-embedded substrate, a component and wiring block units are embedded in a component-embedded layer; conductive layers are located on all surfaces of the wiring block units; the component and the wiring block units are arranged such that lower surface side conductive layers of the wiring block units and electrodes of the component contact lower surface side wiring layers; via-hole conductors are located in respective upper positions relative to upper surface side conductive layers of the wiring block units and the electrodes of the component; and upper surface side wiring layers of the component-embedded layer are thus electrically connected to upper surface side conductive layers of the wiring block units, and the electrodes of the component by the via-hole conductors.
Abstract:
The present optical detection apparatus is adapted to measure an individual light reception value received by respective photodetectors when the light is interrupted by an object and the driving amount for light emission of the respective light emitting devices is controlled to be equal, compute and store the individual driving amount for light emission of the respective light emitting devices so that the individual light reception value may be kept constant and drive the respective light emitting devices in accordance with the individual driving amount for light emission. Accordingly, variation of the light reception value of the respective photodetectors may be eliminated thus preventing erroneous detection of an object.
Abstract:
A component assembly that can be easily built in a main substrate with high accuracy is formed such that a glass transition temperature of a built-in-component layer of an assembly substrate in which multiple capacitors are embedded is higher than a glass transition temperature of a built-in-component layer of a built-in-component substrate. Thus, thermal deformation of the component assembly is prevented when the built-in-component substrate in which the component assembly is built is heated during reflow, for example. The component assembly can thus be highly accurately built in the built-in-component substrate. Moreover, when the component assembly in which the multiple capacitors are embedded is built in the built-in-component substrate, electrode pads of the component assembly in which the multiple capacitors are embedded can be electrically connected to wiring layers of the built-in-component substrate by soldering despite the variation in height among the capacitors.
Abstract:
The optical input detection apparatus is adapted to integrate the value of the light received corresponding to the sum of the value of the light received by the light receiving device during driving of the light emitting device and the external flood light, deduct from the integration value the value of the light received equivalent to the external flood light received by the photodetector during the non-driving period following the driving of the light emitting device, compensate the integration value to the signal corresponding to the light emitting output and output the compensated signal to the comparator for comparison. Consequently, the presence or absence of an interruption in the light beam may be detected without being affected by the external flood light.
Abstract:
A chip-component structure includes an interposer and a multilayer capacitor mounted thereon. The interposer includes a substrate, a component connecting electrode, an external connection electrode, and a side electrode. The component connecting electrode and the external connection electrode are electrically connected by the side electrode. The component connecting electrode is joined to an external electrode of the multilayer capacitor. The substrate includes a communication hole that communicates between opposite spaces opening in both principal surfaces of the substrate.
Abstract:
A component-embedded substrate includes a chip capacitor. The chip capacitor includes a ceramic laminate body and a plurality of terminal electrodes. The component-embedded substrate has a first principal surface and a second principal surface. At least two of the plurality of terminal electrodes are connected to the first principal surface and define a first terminal electrode group, and at least two of the plurality of terminal electrodes are connected to the second principal surface and define a second terminal electrode group. One terminal electrode in the first terminal electrode group is electrically connected to one terminal electrode in the second terminal electrode group via the internal electrodes, and capacitance is provided by a pair of the terminal electrodes in the first terminal electrode group via the dielectric layer, and capacitance is provided by a pair of the terminal electrodes in the second terminal electrode group via the dielectric layer. A direction in which the internal electrodes are stacked is parallel or substantially parallel to the two principal surfaces.