摘要:
A wiring substrate includes a ceramic substrate having a first conductive connection pattern on an lower surface of the ceramic substrate and a second conductive connection pattern on an upper surface or the lower surface of the ceramic substrate, a multilayered wiring portion arranged on the lower surface of the ceramic substrate through the first conductive connection pattern and including an insulating layer made of an organic polymer, on which an integrated circuit and/or a circuit part are/is mounted, and a flexible wiring substrate, connected to the second conductive connection pattern, for connecting the integrated circuit and/or the circuit part to an external circuit.
摘要:
A multi-layer wiring substrate includes an aluminum nitride ceramic substrate, a multi-layer wiring part having an electric insulating layer of an organic polymer, a die pad for mounting thereon an electronic part, and a thermal via of a column shape for effectively dissipating heat generated in the mounted electric part. The multi-layer wiring part is integrally formed on the ceramic substrate. The die pad is provided on a surface of the multi-layer wiring part. One end of the thermal via connects to the die pad, while the other end of the thermal via passes through the multi-layer wiring part and extends at least to the ceramic substrate. The thermal via is electrically insulated from the multi-layer wiring part. In the second multi-layer wiring substrate, at least one of end portions of the above thermal via is wider than a section of the other portion of the thermal via, resulting in further improvement of the heat dissipating property.
摘要:
According to one embodiment, a semiconductor device includes: a substrate; an organic insulating film provided on the substrate; an inorganic insulating film formed thinner than the organic insulating film on the organic insulating film; a hollow sealing structure that is formed on the inorganic insulating film, and seals a MEMS element in an inside while ensuring a space between the hollow sealing structure itself and the MEMS element; a through hole formed so as to penetrate the organic insulating film and the inorganic insulating film; and a conductive member that is filled into the through hole, and electrically connects the MEMS element and an electrode formed by being filled into the through hole.
摘要:
An aspect of one embodiment, there is provided an ultrasonic transducer including a plurality of oscillators, each of the oscillator having a convex portion, a printed wiring board provided to be opposed to the convex portion, an adhesive material including at least a portion of the convex portion, the adhesive material joining the oscillator and the printed wiring board, and a resin provided between the oscillator and the printed wiring board, the resin covering the convex portion and the adhesive material.
摘要:
According to one embodiment, an ultrasonic probe comprises piezoelectric elements arranged in the form of a two-dimensional array, a processing IC configured to process signal information obtained from the piezoelectric elements, and a flexible wiring substrate disposed between the piezoelectric elements and the processing IC, with the piezoelectric elements mounted on a front surface, and the processing IC mounted on a rear surface.
摘要:
An ultrasound probe is provided with a piezoelectric sensor module, which includes a plurality of piezoelectric elements arranged two-dimensionally and configured to generate an ultrasound beam so that the beam is reflected by a subject's body and to capture a resulting reflection signal, and a control circuit board that is electrically connected to the piezoelectric sensor module through a flexible substrate and transmits or receives a signal to or from the piezoelectric sensor module. The control circuit board is composed of a transmit-only circuit board, a receive-only circuit board, and a relay flexible substrate that electrically connects the transmit-only and receive-only circuit boards.
摘要:
A hydraulic system for an automatic transmission for a vehicle with an engine having idle-stop control includes a bypass passage which allows communication between a first hydraulic passage downstream of a manual valve and a forward engagement element, a first switching valve arranged on the bypass passage to be switched between a communicating state and a non-communicating state, and a first switching device which switches the first switching valve between the communicating state and the non-communicating state. The first switching device switches the first switching valve to the communicating state when the hydraulic pressure is lower than a predetermined pressure.
摘要:
The image display apparatus is capable of displaying an image on a large screen in which non-display regions are completely eliminated or minimized. The image display apparatus comprises an opposite board in which common electrodes made of transparent conductive resin are respectively formed on both surfaces of a transparent substrate. A plurality of array boards in each of which semiconductor element and a signal line are formed on a transparent substrate are arranged on both surfaces of the opposite board, such that display regions of end portions of the array boards face each other a sandwich of the opposite board inserted therebetween. Frame-like sealing members made of transparent resin are respectively inserted in clearances between the opposite board and the array boards. Liquid crystal is enclosed in each of spaces surrounded by the frame-like sealing members between the opposite board and the array boards.
摘要:
An ultrasonic probe includes, a transducer, a substrate includes electrodes formed on a front surface and a back surface and electronic components, first flexible wire substrates connected in such a manner that a first end is connected to the transducer and a second end is connected to a electrode at a side of the front surface of the substrate, second flexible wire substrates connected in such a manner that a first end is connected to the transducer and a second end is connected to a electrode at a side of the back surface of the substrate, and a dummy materials including the same rigidity and thickness as those of the first flexible wire substrate is arranged at a space, adjacent to a electrode at the side of the front surface of the substrate, corresponding to the second end of the second flexible wire substrate.
摘要:
An ultrasonic probe includes, a transducer, a substrate includes electrodes formed on a front surface and a back surface and electronic components, first flexible wire substrates connected in such a manner that a first end is connected to the transducer and a second end is connected to a electrode at a side of the front surface of the substrate, second flexible wire substrates connected in such a manner that a first end is connected to the transducer and a second end is connected to a electrode at a side of the back surface of the substrate, and a dummy materials including the same rigidity and thickness as those of the first flexible wire substrate is arranged at a space, adjacent to a electrode at the side of the front surface of the substrate, corresponding to the second end of the second flexible wire substrate.