摘要:
Provided is a power supply apparatus which can effectively restrict the current rise at the time of occurrence of arc discharge that is directly related to the occurrence of splashes or particles, and which is also capable of preventing the discharge voltage from getting excessive at the time of finishing the arc processing. The power supply apparatus has: a DC power supply unit which applies a DC voltage to a target which comes into contact with a plasma; and an arc processing unit which can detect arc discharge generated in the electrode by positive and negative outputs from the DC power supply unit, and also which can perform arc discharge suppression processing. An output characteristics switching circuit switches the outputs such that the output to the electrode has constant-current characteristics and that the output to the electrode has constant-voltage characteristics by the time of completion of the arc suppressing processing.
摘要:
A bipolar pulsed power supply which supplies power in a bipolar pulsed mode at a predetermined frequency to a pair of electrodes that come into contact with a plasma is arranged to reduce the switching loss of the switching elements in a bridge circuit, and also to attain a high durability without using high-performance switching elements. The bipolar pulsed power supply has: a bridge circuit constituted by switching elements SW1 through SW4 connected to positive and negative DC outputs from a DC power supply source; and a control means for controlling switching ON or OFF of each of the switching elements in the bridge circuit. An output-short-circuiting switching element SW0 is disposed between the positive and the negative DC outputs from the DC power supply source such that, in a short-circuited state of the output-short-circuiting switching element, each of the switching elements in the bridge circuit is switched by the control means.
摘要:
A bipolar pulsed power supply is provided in which, while effectively restricting the rise in current at the time of arcing which directly leads to the generation of splashes and particles, the occurrence of overvoltage at the time of polarity reversal is prevented. The power supply has a bridge circuit constituted by switching elements SW1 through SW4 connected to positive and negative DC outputs from a DC power supply source. The operation of the switching elements is controlled to output in a bipolar pulsed mode at a predetermined frequency to a pair of electrodes which come into contact with a plasma. There is provided an output-characteristics-switching circuit which switches the output such that, when outputting to the electrodes, the output to the electrodes has initially constant-voltage characteristics and subsequent output to the electrodes has constant-current characteristics.
摘要:
An electronic device includes: an outline configuration including a first surface, a second surface facing opposite from the first surface, and a mounting surface coupled to the first and second surfaces; a first substrate including a first electrode; a second substrate including a second electrode; a resin disposed between the first and second substrates; and an electric element sealed with the resin and having an outline configuration of a polyhedron, the electric element being disposed such that a broadest surface of the polyhedron faces one of the first substrate and the second substrate. The first surface is one surface of the first substrate, the one surface being opposite from another surface of the first substrate on a side adjacent to the resin. The second surface is one surface of the second substrate, the one surface being opposite from another surface of the second substrate on a side adjacent to the resin. The mounting surface includes: an exposed surface of the resin between the first and second substrates, and side surfaces of the first and second substrates adjacent to the exposed surface. The first electrode is disposed at an end of the first surface adjacent to the mounting surface and electrically coupled to the electric element. The second electrode is disposed at an end of the second surface adjacent to the mounting surface.
摘要:
A first conductive polymer film, a plate-shaped first porous member, a second conductive polymer film, and a plate-shaped second porous member are stacked on one another, and the adjacent members are connected with each other on one end portions so as to form a zigzag pattern. The first and second porous members each have an ionic solution injected thereinto so as to function as an electrolyte retention layer, so that operations can be carried out with tensions being always maintained upon both of the expansion and the contraction, and rigidity and a driving force can be exerted in both of the contracting and expanding directions.
摘要:
A manufacturing method of a piezoelectric device includes: forming a lid for sealing a cavity of a package base by forming a recess part and forming a through hole in an inner surface of the recess part in a metal plate; fixing the lid to the package base containing a piezoelectric vibrating reed so that the recess part may project toward the package base side; providing a metal piece in the recess part; decompressing the cavity via the through hole; and closing the through hole by applying a laser to the metal piece to melt the metal piece, wherein, at forming of the lid, the through hole is formed in a direction orthogonal to a thickness direction of the metal plate.
摘要:
There is provided a power supply apparatus that is capable of suppressing the occurrence of anomalous electric discharge due to charge-up of a substrate and that is capable of forming a good thin film on a large-area substrate. The power supply apparatus of this invention has: a first discharge circuit that alternately charges predetermined potential at a predetermined frequency to a pair of targets that are in contact with a plasma; and a second discharge circuit that charges predetermined potential between the grounding and the electrode, out of the pair of electrodes, that is not charged with potential from the first discharge circuit. The second discharge circuit is provided with a reverse potential charging means for charging, at the time of polarity reversal, at least one of the electrodes with potential that is reverse to the output potential.
摘要:
An electric wiring of a module for an optical apparatus includes: a first through electrode passing through the solid-state image sensor; a first rewiring layer being formed in such a way as to be re-wired to a necessary area in the rear surface of the solid-state image sensor, and being electrically connected to the first through electrode; a second rewiring layer being formed in such a way as to be re-wired to a necessary area in the rear surface of the image processing apparatus, and being electrically connected to the first rewiring layer; a second through electrode passing through the image processing apparatus and being electrically connected to the second rewiring layer; and a third rewiring layer being formed in such a way as to be re-wired to a necessary area in a front surface of the image processing apparatus, and being electrically connected to the second through electrode. The image processing apparatus includes an external connection terminal electrically connected to the third rewiring layer. With the foregoing structure, a small and light module for an optical apparatus and a production method of such module are realized without giving a constraint on the structure of the module.
摘要:
An optical module socket includes a base on which an optical module is mounted; descend/ascend means which is ascendably and descendably provided in the base and on which the optical module is mounted; holding means for holding the optical module in a predetermined state; pogopins provided in the base to connect with leads of the optical module; and positioning means of optical transmission means which are provided in the holding means and the descend/ascend means and which position, to the optical module, an optical connector to be connected to the optical module.
摘要:
A hermetically sealing member with an optical transmission means transmits an optical signal economically and practically between the inside and the outside of a shielding member covering a printed-circuit board while sustaining the hermetically sealed state certainly. An optoelectronic device and an optical transmission method are also provided. A hermetically sealing member with an optical transmission means includes a gasket body fixed between a printed-circuit board and a sealing face of a shielding member, and a tape fiber formed integrally with the gasket body.