摘要:
Electronic component packaging case comprising a substantially plate-like body having a substantially spiral passageway formed in its interior, a linear passageway formed therein as a continuation of an outermost circular portion of the sapiral passageway, an outlet formed therein as a continuation of the linear passageway to communicate with the exterior of the body, a plurality of electronic components received in a row in the spiral passageway, and a plurality of air-intakes for facilitating forwarding of the electronic components along the spiral passageway to the outlet, the air-intakes being formed in the casing body in a manner to communicate between respective circular portions of the spiral passageway and the exterior of the casing body, the case being adapted to be supported on a base of an electronic component supply mechanism with the body standing on the base when the case is used as an electronic component supply source, the outlet being formed at a portion of the casing body which is located at an upper position when the case is supported on the base, the outlet being faced upward, above which outlet the mounting head is adapted to wait. Also, an electronic component supply mechanism for and a method of supplying electronic components to the mounting head by using the packaging case are disclosed.
摘要:
A chip packaging casing for packing chips and also serving as a chip supply source comprises a substantially plate-like body having a spiral passageway formed in its interior, and a plurality of chips received in a row in the spiral passageway of the body. The plate-like body further has a chip-outlet formed therein as a continuation of the spiral passageway to communicate with the exterior of the body and at least one air-intake formed therein to communicate between the passageway and the exterior of the body. The air-intake is adapted to be connected to an air supply source and serves to facilitate the forwarding of the chips along the passageway toward the outlet to discharge the chips form the outlet. A chip supply mechanism is provided for supplying chips to a mounting head of an automatic chip mounting apparatus by using the chip packaging casing.
摘要:
An electronic component feed system capable of feeding an electronic component mounting apparatus with a variety of electronic components such as chips, lead-type electronic components and the like in various forms. A plurality of feeder modules corresponding to sorts of electronic components to be mounted on printed circuit boards are stored in a storage kit and transferred through the storage kit to an electronic component feed section of the mounting apparatus on which a printed circuit board is held. Then, the electronic components are mounted on the printed circuit board by means of a mounting head.
摘要:
The technical problem to be solved is to change the thickness of the colored resin layer of the preform gradually in the upward or downward direction, by utilizing a tendency of gradual decrease in the thickness of the colored resin layer caused by the flow of the main resin inside the preform mold when the main resin and the colored resin are injected into the mold. This involves adjusting the injection pattern including the time of starting and ending the supply of the main resin and the colored resin, and pressure or velocity profiles, reducing the thickness of the colored resin layer gradually upstream or downstream, injection-molding the preform in which a color-gradated portion associated with the thickness of the colored resin layer has been formed, and biaxially drawing and blow molding this preform into a bottle having a color-gradated portion.
摘要:
A semiconductor includes an N-type impurity region provided in a substrate. A P-type RESURF layer is provided at a top face of the substrate in the N-type impurity region. A P-well has an impurity concentration higher than that of the P-type RESURF layer, and makes contact with the P-type RESURF layer at the top face of the substrate in the N-type impurity region. A first high-voltage-side plate is electrically connected to the N-type impurity region, and a low-voltage-side plate is electrically connected to a P-type impurity region. A lower field plate is capable of generating a lower capacitive coupling with the substrate. An upper field plate is located at a position farther from the substrate than the lower field plate, and is capable of generating an upper capacitive coupling with the lower field plate whose capacitance is greater than the capacitance of the lower capacitive coupling.
摘要:
Provided are an organic compound having high heat stability suitable for use in an organic light-emitting device, and an organic light-emitting device using the organic compound. The organic light-emitting device is an organic light-emitting device, including: an anode; a cathode; and an organic compound layer disposed between the anode and the cathode, in which at least one layer of the organic compound layer has a 6,12-dinaphthylchrysene derivative represented by one of the following general formulae (1) and (2): in the formulae (1) and (2), Z represents a naphthyl group, and Q represents an electron-withdrawing substituent selected from the group consisting of the following general formulae (3) to (5): in the formula (5), R1 represents a hydrogen atom or a methyl group.
摘要:
The technical problem to be solved is to change the thickness of the colored resin layer of the preform gradually in the upward or downward direction, by utilizing a tendency of gradual decrease in the thickness of the colored resin layer caused by the flow of the main resin inside the preform mold when the main resin and the colored resin are injected into the mold. This involves adjusting the injection pattern including the time of starting and ending the supply of the main resin and the colored resin, and pressure or velocity profiles, reducing the thickness of the colored resin layer gradually upstream or downstream, injection-molding the preform in which a color-gradated portion associated with the thickness of the colored resin layer has been formed, and biaxially drawing and blow molding this preform into a bottle having a color-gradated portion.
摘要:
Provided are an organic compound having high heat stability suitable for use in an organic light-emitting device, and an organic light-emitting device using the organic compound. The organic light-emitting device is an organic light-emitting device, including: an anode; a cathode; and an organic compound layer disposed between the anode and the cathode, in which at least one layer of the organic compound layer has a 6,12-dinaphthylchrysene derivative represented by one of the following general formulae (1) and (2): in the formulae (1) and (2), Z represents a naphthyl group, and Q represents an electron-withdrawing substituent selected from the group consisting of the following general formulae (3) to (5): in the formula (5), R1 represents a hydrogen atom or a methyl group.
摘要:
A capacity variable link apparatus including a main signal system and a control signal system is provided. The main signal system includes: an upper layer signal accommodation part; a lower layer path termination part; and a signal switching part for dividing the upper layer signal to lower layer signals in a lower layer path group having a capacity that is determined according to an amount of traffic of the upper layer signal. The control system includes: a traffic amount measuring part for measuring the amount of traffic of the upper layer and for determining whether the capacity of the lower layer path group is to be increased or decreased according to the amount; and a signal switching management part for controlling the signal switching part according to the result of the determination.