摘要:
The present invention is intended to improve the uniformity in a distribution function of incident ion energy inside a wafer surface, and realize uniform plasma processing (etching or the like) inside the wafer surface. In a plasma processing apparatus, a bias application portion of a placement electrode on which a wafer is placed is divided into an inner electrode and an outer electrode at positions near the center of the wafer and the edge thereof. Each of a first bias power and a second bias power to be used to accelerate ions incident on the wafer is bifurcated, and the resultant bias powers are fed to the inner electrode and outer electrode using a power distributor by adjusting the power ratio.
摘要:
In a plasma processing apparatus provided with control means, gas supply means includes a first gas supply path for supplying a vent gas into a processing chamber by way of a shower plate and a second gas supply path for supplying a vent gas into the processing chamber without via the shower plate, and the control means is capable of adjusting a flow rate of the vent gas of at least one of the first and second gas supply paths in such a manner that a pressure on a back side of the shower plate becomes a pressure that is a positive pressure relative to a pressure in the processing chamber and less than a withstand pressure of the shower plate.
摘要:
A speaker vibrating body vibrated by a driving part includes a plurality of diaphragms vibratably supported by a static part supporting said driving part and a diaphragm connecting part, provided between a first diaphragm and a second diaphragm among said plurality of diaphragms, coupling said first diaphragm and said second diaphragm and synchronously moving said first diaphragm and said second diaphragm toward or away from each other.
摘要:
An electronic apparatus includes: a temperature measurement section that measures a temperature of a heat generation source generating heat by consuming power or a temperature of an inner position of a casing of which the temperature changes due to the heat generation of the heat generation source; and an environmental temperature calculation section that calculates a temperature which is calculated using a predetermined relational equation that is different in accordance with a model from a difference between a first temperature measured by the temperature measurement section at a point in time when the heat generation source starts consuming a predetermined amount of power and a second temperature measured by the temperature measurement section at a point in time after the passage of a predetermined period from the start of consumption of a predetermined amount of power by the heat generation source as an environmental temperature in an environment where the casing is placed.
摘要:
A speaker device includes a diaphragm (2), frame (3) vibratably supporting the diaphragm (2) in the vibration direction, and a driving part (4) provided at the frame (3), applying vibration to the diaphragm (2) in response to an audio signal. The driving part (4) includes a magnetic circuit (40) forming a magnetic gap (40G) in a different direction in respect with the vibration direction of the diaphragm (2), a voice coil support part (6) having a voice coil (60) and vibrating along the magnetic gap (40G), and a vibration direction converter part (7) direction converting the vibration of the voice coil support part (6) and transmitting the vibration to the diaphragm (2). The magnetic circuit (40) includes a pair of magnetic gaps (40G, 40G) having different directions of magnetic flux. The pair of magnetic gaps (40G,40G) are arranged side by side in the vibration direction of the voice coil support part (6) and the voice coil (60) supported by the voice coil support part (6) is planarly arranged so as to itinerate in the pair of magnetic gaps (40G, 40G).
摘要:
A speaker device includes a vibrating body including a diaphragm and a voice coil supported by a part of the diaphragm and a magnetic circuit including a first magnetic pole part having a magnet and a second magnetic pole part different from the first magnetic pole part and arranged spaced apart from the first magnetic pole part. The voice coil is arranged between the first magnetic pole part and the second magnetic pole part, the vibrating body includes a conducting part formed at a part or whole of the diaphragm, in the proximity of the voice coil, and the conducting part is arranged between the first magnetic pole part and the second magnetic pole part.
摘要:
A semiconductor memory device includes a memory cell array, a redundant element, an address specifying circuit configured to select one of a plurality of addresses as a redundancy address in response to a switchover signal, a decoder circuit configured to select the redundant element in response to an externally applied address that matches the redundancy address selected by the address specifying circuit, and a test mode setting circuit configured to change the switchover signal in response to an externally applied input, thereby to cause the redundancy address assigned to the redundant element to be switched between different ones of the plurality of addresses.
摘要:
To provide a Fresnel lens wherein changes in focal length due to temperature dependence of the refractive index can be compensated. By introducing a fractal structure into prisms in a peripheral region in which the prism angle is large and therefore the aspect ratio h/p of the prisms is large, the aspect ratio is reduced from h/p to h′/p and the slope of the envelope 20 to the underside of the slopping face is reduced, and thereby a shape in which a change in focal length due to temperature dependence of refractive index can be compensated for by a change in the shape of lenses due to expansion/contraction, is obtained.
摘要:
There is provided an electronic component mounting apparatus including: a component holder which holds an electronic component; a pressing unit which applies pressure to the held electronic component through the component holder; and an ultrasonic transducer which applies ultrasonic vibration to the held electronic component through the component holder. The component holder includes a horn at one end of which is mounted the ultrasonic transducer and a holding tool which is fixed to the other end of the horn by using bolts and holds the electronic component. The horn has a surface A1 and a surface A2 at the other end and the holding tool has a surface B1 in intimate contact with the surface A1 and a surface B2 in intimate contact with the surface A2.
摘要:
A vacuum processing apparatus includes a member having a gas passage formed in a center between the pressure adjusting valve of an exhaust system and a turbo-molecular pump, and a particle dispersion prevention unit having plural stationary blades formed to be tilted in a direction opposite the direction of the rotary blade of the turbo-molecular pump on the outer circumference of the member.