Abstract: According to one embodiment, a semiconductor device is provided which includes a substrate in which conductor layers and insulated layers are stacked alternately, a semiconductor element mounted on a first surface side of the substrate, and a reinforcing plate attached to a second surface side that is an opposite side of the first surface of the substrate.

Abstract: According to one embodiment, coupling capacitance in a state in which a first heat radiation member is arranged between parallel flat plates of a first capacitor formed by a surface of a housing opposed to one surface of a printed circuit board and the printed circuit board is smaller than coupling capacitance in a state in which an integrally formed object having a relative dielectric constant of 5.8 is arranged between the first capacitor to cover a first radiating region containing the controller and the first nonvolatile semiconductor memories.

Abstract: According to one embodiment, coupling capacitance in a state in which a first heat radiation member is arranged between parallel flat plates of a first capacitor formed by a surface of a housing opposed to one surface of a printed circuit board and the printed circuit board is smaller than coupling capacitance in a state in which an object having a relative dielectric constant of 5.8 is arranged solid between the parallel flat plates of the first capacitor.

Abstract: A SSD apparatus includes a first memory module, a second memory module, a module controller which determines a method of controlling the first and second memory modules, a control board mounted with the module controller, a first connector which a module board of the first memory module and the control board are connected to, a second connector which a module board of the second memory module and the control board are connected to, and an interface device connected to the control board. A memory chip and a memory controller are mounted on one surface of the module board of each of the first and second memory modules. The other surface of the module board of the first memory module is faced to the other surface of the module board of the second memory module.

Abstract: An reset control apparatus includes a first circuit which operates on the basis of a first power supply specification, a second circuit which operates on the basis of a second power supply specification, a first reset signal output unit which supplies to the first circuit a first reset signal for resetting the first circuit on the basis of a first reset specification, a second reset signal output unit which supplies to the second circuit a second reset signal for resetting the second circuit on the basis of a second reset specification, and a power voltage unit which supplies a predetermined voltage to the first reset signal output unit and the second reset signal output unit.

Abstract: When a disc is driven at a low speed, the number of tracks crossed by a beam spot of an optical pickup (3) is determined as the number of crossing tracks corresponding to an amount of mass eccentricity of the disc. If this number of crossing tracks exceeds a first threshold value, the disc is rejected as a non-conforming disc. When the disc is driven at a high speed, the number of tracks crossed by the beam spot is determined, a value remaining by subtracting the number of crossing tracks at the low speed from the number of crossing tracks at the high speed is determined as an amount of vibration produced owing to a mass eccentricity of the disc. Thus, a disc drive which can make an extremely precise detection of a magnitude of vibration resulting from the mass eccentricity of the disc without using a sensor component for detecting the vibration can be provided.

Abstract: A multi-band receiver for receiving broadcast signals divided by frequencies into an FM group and a TV group, the TV group including at least two different frequency ranges separated by a substantial frequency gap. The receiver includes a band selector for selecting a desired frequency group from the two group, a tuning controller for selecting a desired broadcast frequency within the desired group from a predetermined tuning band, an oscillator for separating signals of the desired frequency from the received broadcast signals and converting the separated signals into audio signals and a frequency adjuster responsive to the band selector and the tuning controller for automatically adjusting the oscillation frequency of the oscillator when the TV group has been selected for substantially removing the frequency gap from the predetermined tuning band.