摘要:
An automatic disc selection type reproducing apparatus comprises a disc accommodating mechanism having disc accommodating portions for accommodating discs, and a reproducer part provided below and movable along the disc accommodating mechanism. The disc accommodating mechanism is substantially arranged horizontally, and the discs are accommodated within the disc accommodating portions in a vertical state where a disc surface of one disc opposes a disc surface of an adjacent disc. The reproducer part moves and stops at a position opposing a disc which is designated by designating an address of the disc accommodating portion which accommodates this disc. The reproducer part has a disc carrying mechanism for carrying the disc which assumes the vertical state, upwardly and downwardly between the disc accommodating mechanism and the reproducer part, while supporting a lower portion of an outer peripheral edge of the disc. The disc carrying mechanism supplies the disc from the disc accommodating portion to the reproducer part by use of the weight of the disc when playing the disc, and returns the disc into the disc accommodating portion by separating the disc from the reproducer part when the playing of the disc is completed.
摘要:
A gate driving circuit according to the present invention having, an output circuit which is connected to a first power supply terminal and a ground terminal and, upon receiving an ON/OFF signal, changes a level of a gate output terminal between a power supply voltage and a ground voltage, a shunt switching element which is connected between the gate output terminal and the ground terminal and is ON/OFF-controlled upon receiving a shunt control signal, and an output shunt control circuit which monitors the level of the gate output terminal and outputs the shunt control signal, wherein when the level of the gate output terminal decreases to not more than a first threshold value, the output shunt control circuit turns on the shunt switching element, and while the level is not more than a second threshold value larger than the first threshold value, the output shunt control circuit supplies the shunt control signal to said shunt switching element to maintain an ON state of the shunt switching element.
摘要:
The differential amplifier of a comparator circuit includes first and second n-type MOSFETs for receiving an input signal, first and second p-type MOSFETs of a current mirror circuit, and a third n-type MOSFET of a current source circuit. The output stage includes a third p-type MOSFET for transmitting a signal, and a fourth n-type MOSFET of the current source circuit. The differential amplifier further includes fifth and sixth n-type MOSFETs respectively series-connected to the first and second n-type MOSFETs. The output stage further includes a seventh n-type MOSFET series-connected to the fourth n-type MOSFET. The gates of the fifth, sixth, and seventh n-type MOSFETs are connected to voltage bias circuits. The fifth, sixth, and seventh n-type MOSFETs suppress variations in voltage at an output node caused by poor saturation characteristics of the first, second, and fourth main n-type MOSFETs.
摘要:
Oxadiazole derivatives represented by formula (I): (wherein R1 represents a hydrogen atom or an amino-protective group; R2, R3, and R4 each independently represents an alkyl group, a cycloalkyl group, a phenyl group which may be substituted, or a 3,4-methylenedioxyphenyl group, or R3 and R4 are taken together to represent a C2-6 alkylene group), a process of producing the same, and a process for producing oxadiazole derivatives represented by formula (II): (wherein all symbols have the same meanings as described above) using the above derivative. According to the invention, the compound represented by formula (II) is produced through fewer steps in a high yield.
摘要:
A gate driver includes an edge detection circuit, an ON pulse generation circuit, first and second OFF pulse generation circuit and a status hold circuit. The first OFF pulse generation circuit generates a first OFF pulse in response to a leading or trailing edge of a control input signal, which is detected by the edge detection circuit. The status hold circuit drives an output element in response to the ON pulse outputted from the ON pulse generation circuit and holds driving status of the output element until a first OFF pulse is outputted from the first OFF pulse generation circuit. The second OFF pulse generation circuit generates a second OFF pulse in response to a protect operation signal and supplies this pulse to the status hold circuit, thereby to stop driving of the output element.
摘要:
A semiconductor apparatus in a preferred embodiment includes: a substrate; a first chip provided on the substrate; a solder bump formed on the first chip; a solder dam arranged in substantially a rectangular and annular manner outside around the solder bump on the first chip by alternately connecting four sides and four quarter or less arcs; an electrode pad placed outside of the solder dam in the first chip; a second chip provided on the first chip in electric connection to the first chip via the solder bump; and an under-fill material filling a clearance between the first chip and the second chip inside of the solder dam. Here, a difference between an inner diameter and an outer diameter of the arc is 60 μm or more whereas the center radius of the arc is greater than 207.5 μm.
摘要:
According to an embodiment, a chip-on-chip structure includes a first chip, a second chip, the first chip and the second chip being opposite to each other, a first electrode terminal, a second electrode terminal, a bump and a protecting material. The first electrode terminal is provided on the surface of the first chip at the side of the second chip. The second electrode terminal is provided on the surface of the second chip at the side of the first chip. The bump electrically connects the first electrode terminal and the second electrode terminal. The protecting material is formed around the bump between the first chip and the second chip. The protecting material includes a layer made of a material having heat-sensitive adhesive property.
摘要:
A gate driving circuit according to the present invention having, an output circuit which is connected to a first power supply terminal and a ground terminal and, upon receiving an ON/OFF signal, changes a level of a gate output terminal between a power supply voltage and a ground voltage, a shunt switching element which is connected between the gate output terminal and the ground terminal and is ON/OFF-controlled upon receiving a shunt control signal, and an output shunt control circuit which monitors the level of the gate output terminal and outputs the shunt control signal, wherein when the level of the gate output terminal decreases to not more than a first threshold value, the output shunt control circuit turns on the shunt switching element, and while the level is not more than a second threshold value larger than the first threshold value, the output shunt control circuit supplies the shunt control signal to said shunt switching element to maintain an ON state of the shunt switching element.
摘要:
An apparatus performs a process for treating development waste liquor containing photosensitive resin and surface active agent. The process subjects the waste liquor to treatment for diminishing the efficacy of the surface active agent to result in separation of the resin from the waste liquor. The waste liquor is then irradiated with ultraviolet light at 300-400 nm. The apparatus contains a tank, a stirrer, an ultraviolet source and a filter.
摘要:
A semiconductor device includes first and second MOSFETs corresponding to at least first power source voltage and second power source voltage lower than the first power source voltage, and non-silicide regions formed in drain portions of the first and second MOSFETs and having no silicide formed therein. The first MOSFET includes first diffusion layers formed in source/drain portions, a second diffusion layer formed below a gate portion and formed shallower than the first diffusion layer and a third diffusion layer formed with the same depth as the second diffusion layer in the non-silicide region, and the second MOSFET includes fourth diffusion layers formed in source/drain portions, a fifth diffusion layer formed below a gate portion and formed shallower than the fourth diffusion layer and a sixth diffusion layer formed shallower than the fourth diffusion layer and deeper than the fifth diffusion layer in the non-silicide region.