摘要:
A semiconductor device includes a substrate provided with a plurality of leads, a face-down semiconductor element provided on one surface of the substrate, a first stacked semiconductor element and a second stacked semiconductor element provided on another surface of the substrate and connected to the substrate by wires, and an extended wiring mechanism for connecting electrodes of the face-down semiconductor element and electrodes of the first and second semiconductor elements. The connected electrodes are equi-electrodes whose electrical characteristics are equal.
摘要:
In a stacked semiconductor device which has a plurality of semiconductor chips of desired sizes stacked as one package, a first semiconductor chip is mounted on a flexible printed wiring board provided with external connecting terminals. A printed circuit board is placed and mounted on the first semiconductor chip by flip-chip bonding. A second semiconductor chip is secured onto the printed circuit board. The second semiconductor chip is connected to the flexible printed wiring board by wire bonding. The first semiconductor chip is connected to the flexible printed wiring board by wire bonding via the printed circuit board.
摘要:
A semiconductor device includes the first through third semiconductor devices which are stacked on a substrate and the first through third wires for connecting the semiconductor elements and the substrate. The first wires serve to connect electrodes of the first semiconductor element positioned uppermost and electrodes of the second semiconductor element. The second wires serve to connect the electrodes of the second semiconductor element and electrodes of the third semiconductor element. The third wires serve to connect the electrodes of the third semiconductor element and bonding pads of the substrate. Between the first wires and the electrodes of the second semiconductor element and between the second wires and the electrodes of the third semiconductor element, stud bumps are provided so as to form space therebetween, thereby avoiding short-circuits therebetween.
摘要:
A helicopter-mounted communication apparatus encodes video data at a compression rate based on a percentage of time a transmission beam is blocked by rotor blades. When a number of video packets is less than a specified number, the helicopter-mounted communication apparatus inserts null packets to keep a packet rate constant, then deletes the null packets and attaches additional information to another packet indicating the number of deleted null packets, and after buffering modulates and transmits a signal toward a communication satellite at transmittable-time points. A terrestrial station communication apparatus receives and demodulates the transmitted signal via the communication satellite, generating a packet stream, and based on the additional information included in the generated packet stream, inserts null packets in the packet stream and buffers the packet stream, thereby keeping the packet rate constant, and then separates the video packets from the packet stream and decodes the separated video packets.
摘要:
A helicopter-mounted communication apparatus encodes video data at a compression rate based on a percentage of time a transmission beam is blocked by rotor blades. When a number of video packets is less than a specified number, the helicopter-mounted communication apparatus inserts null packets to keep a packet rate constant, then deletes the null packets and attaches additional information to another packet indicating the number of deleted null packets, and after buffering modulates and transmits a signal toward a communication satellite at transmittable-time points. A terrestrial station communication apparatus receives and demodulates the transmitted signal via the communication satellite, generating a packet stream, and based on the additional information included in the generated packet stream, inserts null packets in the packet stream and buffers the packet stream, thereby keeping the packet rate constant, and then separates the video packets from the packet stream and decodes the separated video packets.
摘要:
An apparatus includes plural combinations of a clock supplier and a clock supply destination supplied with a clock from the clock supplier. The clock supply destination includes a return route through which the clock supply destination returns a clock to a corresponding clock supplier. The clock supplier includes a variable delay unit that adds a delay to the clock to be supplied to a corresponding clock supply destination; a comparison-reference-clock supply unit that supplies a comparison reference clock having the same phase as that of a comparison reference clock supplied from other clock supplier; a phase comparator that compares the phase of a return clock returned from a corresponding clock supply destination with that of the comparison reference clock; and a phase-difference control unit that controls the delay, so that the phases of the return clock and the comparison reference clock coincide with each other, based on the comparison result.
摘要:
An apparatus includes plural combinations of a clock supplier and a clock supply destination supplied with a clock from the clock supplier. The clock supply destination includes a return route through which the clock supply destination returns a clock to a corresponding clock supplier. The clock supplier includes a variable delay unit that adds a delay to the clock to be supplied to a corresponding clock supply destination; a comparison-reference-clock supply unit that supplies a comparison reference clock having the same phase as that of a comparison reference clock supplied from other clock supplier; a phase comparator that compares the phase of a return clock returned from a corresponding clock supply destination with that of the comparison reference clock; and a phase-difference control unit that controls the delay, so that the phases of the return clock and the comparison reference clock coincide with each other, based on the comparison result.
摘要:
A door structure of a motor vehicle has an inner panel and an outer panel. The door structure includes an impact load absorber member, provided at an outer panel side of the door, for absorbing and reducing a side collision impact load acting on a passenger by contact with the passenger. An opening is provided in the inner panel for allowing at least one portion of the impact load absorber member to enter. An passenger is compartment of the vehicle during a side collision. A supporting device is provided in the door for supporting the impact load absorber member.
摘要:
A helicopter satellite communication system in which a terrestrial station communication apparatus communicates with a helicopter-mounted communication apparatus via a communication satellite. The terrestrial station communication apparatus includes: an encoder that performs error-correcting encoding of target transmission information; a packet interleaver that divides the encoded information into a plurality of packets and rearranges the packets; and a transmitter that transmits the rearranged packets to the helicopter-mounted communication apparatus. The helicopter-mounted communication apparatus includes: a receiver that receives the packets that are transmitted from the terrestrial station communication apparatus: a packet de-interleaver that rearranges the received packets in the original order; and a decoder that, by decoding the rearranged packets, restores the information that is lost due to the rotor blades of the helicopter.