摘要:
A flexural vibration piece includes a flexural vibrator that has a first region on which a compressive stress or a tensile stress acts due to vibration and a second region having a relationship in which a tensile stress acts thereon when a compressive stress acts on the first region and a compressive stress acts thereon when a tensile stress acts on the first region, and performs flexural vibration in a first plane. The flexural vibration piece also includes a heat conduction path, in the vicinity of the first region and the second region, that is formed of a material having a thermal conductivity higher than that of the flexural vibrator and thermally connects between the first region and the second region.
摘要:
The method disclosed in this specification includes: acquiring a dark-field image produced by capturing an image of a sample with a scanning transmission electron microscope by detecting electrons scattered at angles between a first angle to the optical axis of the scanning transmission electron microscope and a second angle which is larger than the first angle; acquiring a bright-field image captured simultaneously with the dark-field image by detecting electrons scattered within a third angle which is smaller than the first angle; generating a reverse image by reversing lightness and darkness of the dark-field image; and generating a difference image each of whose pixels has a brightness value equal to the difference between the brightness of the corresponding pixel in the reverse image and the brightness of the corresponding pixel in the bright-field image.
摘要:
A resonator having a base part; and a resonating arm that performs flexing vibration, the resonating arm part has two principal surfaces, a first groove provided on the one principal surface, a second groove provided in juxtaposition with the first groove on the other principal surface, a third groove provided in juxtaposition with the first groove and provided nearer the base part side than the first groove on the other principal surface, and a fourth groove provided in juxtaposition with the second groove and provided nearer the base part side than the second groove on the principal surface. The sum of a depth of the first and second groove part and a sum of a depth of the third and fourth groove part are larger than a distance between the one principal surface and the other principal surface.
摘要:
A vibrating piece manufacturing method includes: (a) preparing a supporting body having first and second surfaces, the first and second surfaces defining a thickness while being directed toward opposite directions, the supporting body including a base and a plurality of arms, the arms extending side-by-side in a direction orthogonal to a direction of the thickness from the base, a lower electrode film being disposed on the first surface of each of the arms, a piezoelectric film being disposed on the lower electrode films, at least one upper electrode film being disposed on the piezoelectric film, at least a part of the second surface of each of the arms being an exposed area; and (b) etching the exposed area of the second surface so as to reduce the thickness to reduce flexural rigidity of the arms with respect to the thickness direction.
摘要:
An imaging apparatus including: a plurality of pixels including a photoelectric conversion element and a sample hold circuit; a plurality of signal lines configured to read from the plurality of pixels an electric signal held in the sample hold circuit therein; a imaging control unit configured to perform a first control for applying the held electric signal to the plurality of signal lines, and a second control for sequentially applying to the signal lines the electric signal obtained corresponding to light received by each of the plurality of pixels and reading the electric signal, after the first control has been performed; and a generation unit configured not to create image data based on the electric signal applied to the signal line by the first control but to create the image data based on the electric signal read via the signal line by the second control.
摘要:
A radiation imaging apparatus includes an imaging unit and an imaging control unit. The imaging control unit causes a switch unit, a accumulation unit, a removal unit, a holding unit, and an addition unit, which constitute a pixel circuit of the imaging unit, to operate at a timing before imaging operation by the imaging unit so as to fix unstable voltages of the accumulation unit, the removal unit, the holding unit, and the addition unit to a predetermined voltage of a power supply connected via a switch unit.
摘要:
An apparatus includes: a retainer moving between a shuttle and a socket; a presser holding a component; an adjuster moving the presser; a socket mark near the socket; a hand mark near the socket mark when the retainer is at a component mounting position; a first camera photographing a first image including the component and hand mark; a second camera photographing a second image including the socket mark and socket, and a third image including the socket mark and hand mark; a first calculator obtaining a first relative position between the socket mark and socket from the second image; a second calculator obtaining a second relative position between the socket mark and hand mark from the third image; and a third calculator obtaining a third relative position between the hand mark and component from the first image. The adjuster corrects the component's position based on the relative positions.
摘要:
A resonator having a base part; and a resonating arm that performs flexing vibration, the resonating arm part has two principal surfaces, a first groove provided on the one principal surface, a second groove provided in juxtaposition with the first groove on the other principal surface, a third groove provided in juxtaposition with the first groove and provided nearer the base part side than the first groove on the other principal surface, and a fourth groove provided in juxtaposition with the second groove and provided nearer the base part side than the second groove on the principal surface. The sum of a depth of the first and second groove part and a sum of a depth of the third and fourth groove part are larger than a distance between the one principal surface and the other principal surface.
摘要:
Deterioration of the Q value caused by the thermoelastic effect is suppressed. Since a first depth of a first groove and a second depth of a second groove are smaller than a distance between a surface including a third surface and a surface including a fourth surface, the first and second grooves do not penetrate between the surface including the third surface and the surface including the fourth surface. In addition, the sum of the first depth of the first groove and the second depth of the second groove is greater than the distance between the third and fourth surfaces, a heat transfer path between a first expandable portion (the first surface) and a second expandable portion (the second surface) cannot be formed as a straight line. As such, the heat transfer path between the first expandable portion (the first surface) and a second expandable portion (the second surface) is made to detour to the first and second grooves and and thus be lengthened.
摘要:
A semiconductor memory device formed on a semiconductor chip includes first memory arrays, a plurality of second memory arrays, a first voltage generator, and first bonding pads. The semiconductor chip is divided into first, second and third rectangle regions and the third rectangle region is arranged between the first rectangle region and the second rectangle region. The first memory arrays are formed in the first rectangle region. The second memory arrays are formed in the second rectangle region. The voltage generator and first bonding pads are arranged in the third rectangle region. The first bonding pads are arranged between the first rectangle region and the voltage generator and no bonding pads are arranged between the voltage generator and the second memory arrays.