Abstract: A vibration element includes a base and a vibrating arm extending from the base. The vibrating arm includes an arm positioned between the base and a weight. A weight film is disposed on the weight. The weight has a first principal surface and a second principal surface in a front and back relationship with respect to a center plane of the arm. A center of gravity of the weight is located between the first principal surface and the center plane of the arm. A center of gravity of the weight film is located between the second principal surface and the center plane of the arm.

Abstract: A blood coagulation analyzing method according to one or more aspects may include: calculating a coagulation time based on data representing a coagulation curve of a change in an optical detection value of a blood specimen added with a reagent for starting a coagulation reaction; calculating an index value related to derivatives calculated concerning the coagulation curve represented by the data used in the calculating the coagulation time; and determining whether an early reaction error has occurred based on a comparison result obtained by comparing the index value to a predetermined threshold.

Abstract: Provided is a method for manufacturing a vibrator element including a first vibration arm and a second vibration arm that each have a first surface and a second surface. The manufacturing method includes a preparation step of preparing a quartz crystal substrate, a first protective film forming step of forming a first protective film on a first substrate surface of the quartz crystal substrate, a first dry etching step of dry etching the quartz crystal substrate via the first protective film, a second protective film forming step of forming a second protective film on a second substrate surface of the quartz crystal substrate, and a second dry etching step of dry etching the quartz crystal substrate via the second protective film. Outer shapes of the first vibration arm and the second vibration arm are formed from the first surface to the second surface in the first dry etching step, and the outer shapes of the first vibration arm and the second vibration arm are not formed in the second dry etching step.

Abstract: A method for manufacturing a vibrator element includes a first protective film forming step of forming a first protective film on a first substrate surface of a quartz crystal substrate, a first dry etching step of dry etching the quartz crystal substrate from a first substrate surface side to form a first groove and outer shapes of a first and second vibration arms, a second protective film forming step of forming a second protective film on a second substrate surface of the quartz crystal substrate, and a second dry etching step of dry etching the quartz crystal substrate from a second substrate surface side to form a second groove and outer shapes of the first and second vibration arms. In the first dry etching step, the outer shapes of the first and second vibration arms are formed to be closer to the second substrate surface than is a position where a bottom surface of the second groove is formed.

Abstract: A vibrator device includes a vibrating body having a first surface, a package having a second surface opposed to the first surface of the vibrating body, a circuit board provided to the package so as to be opposed to the first surface of the vibrating body, a plurality of coupling electrodes provided to the first surface of the vibrating body, a first coupling line provided to the second surface of the package, a second coupling line provided to the circuit board, and a bonding material electrically coupling the coupling electrode and the first coupling line to each other, wherein the vibrating body has a protrusion protruding toward the package farther than the coupling electrode at the first surface side, and the protrusion has contact with the second surface of the package.

Abstract: Provided is a vibrator device including a vibrator structure body. When the A axis, the B axis, and the C axis are three axes orthogonal to each other, the vibrator structure body includes a vibrator element and a support substrate that is aligned with the vibrator element along the C axis. The vibrator element includes vibrating arms configured to flexurally vibrate along a plane parallel to the A axis and the B axis and along the A axis. The support substrate includes a base that supports the vibrator element, a support that supports the base, and a beam that couples the base and the support. A relationship f0<f1 is satisfied in which f0 is a resonance frequency of a vibration of the vibrator structure body along the B axis and f1 is a drive frequency of the vibrator element.

Abstract: A vibration element includes a vibrating part, and a support part which is coupled to the vibrating part to support the vibrating part, wherein the vibrating part and the support part have a first surface and a second surface having a front and back relationship with the first surface, a first electrode is disposed on the first surface, the first electrode includes a first layer as a foundation layer, and a second layer as an upper layer of the first layer, when performing zoning into a first area where the first electrode is not disposed, a second area where the first layer and the second layer are stacked on one another, and a third area where the first layer is formed, identification symbols formed of two or more of the first to third areas are disposed, and an identification code formed of a plurality of the identification symbols is provided.

Abstract: A method for manufacturing a vibration element including a first protective film formation step of forming a first protective film, a first dry etching step of performing dry etching via the first protective film to form first grooves and the outer shapes of vibrating arms, a second protective film formation step of forming a second protective film in the first grooves, a second dry etching step of performing dry etching via the second protective film, a third protective film formation step of forming a third protective film, a third dry etching step of performing dry etching via the third protective film to form second grooves and the outer shapes of the vibrating arms, a fourth protective film formation step of forming a fourth protective film in the second grooves, and a fourth dry etching step of performing dry etching via the fourth protective film.

Abstract: A method for manufacturing a vibration element including first and second vibrating arms each having a first surface and a second surface that are front and rear sides with respect to each other and a bottomed groove that opens via the first surface, the method including a first protective film formation step of forming a first protective film, a first dry etching step of performing dry etching via the first protective film to form grooves and the outer shapes of the first and second vibrating arms, a second protective film formation step of forming a second protective film in the grooves, and a second dry etching step of performing dry etching via the second protective film to form the first surface and the outer shapes of the first and second vibrating arms.

Abstract: A method for manufacturing a vibration element includes, a base film forming step of forming a first base film at a first substrate surface of a quartz crystal substrate in first and second vibrating arm forming regions, a protective film forming step of forming a first protective film in a bank portion forming region of the first base film, and a dry-etching step of dry-etching the quartz crystal substrate through the first base film and the first protective film.

Abstract: A method for manufacturing a vibration element includes, a first base film forming step of forming a first base film at a first substrate surface of a quartz crystal substrate in first and second vibrating arm forming regions, a first protective film forming step of forming a first protective film in a first bank portion forming region of the first base film, a first dry-etching step of dry-etching the quartz crystal substrate through the first base film and the first protective film, a second base film forming step of forming a second base film at a second substrate surface of the quartz crystal substrate in the first and second vibrating arm forming regions, a second protective film forming step of forming a second protective film in a second bank portion forming region of the second base film, and a second dry-etching step of dry-etching the quartz crystal substrate through the second base film and the second protective film.

Abstract: A vibration element includes a base and a vibrating arm extending from the base. The vibrating arm includes an arm positioned between the base and a weight. A weight film is disposed on the weight. The weight has a first principal surface and a second principal surface in a front and back relationship with respect to a center plane of the arm. A center of gravity of the weight is located between the first principal surface and the center plane of the arm. A center of gravity of the weight film is located between the second principal surface and the center plane of the arm.

Abstract: A method of manufacturing a vibration element includes: a protective film forming step of forming a protective film on a first substrate surface of a crystal substrate; and a dry etching step of dry-etching the crystal substrate via the protective film. The protective film satisfies a relationship of T1<T2<T3, in which T1 is a thickness of the protective film in an inter-arm region positioned between a first vibration arm forming region in which a first vibration arm is formed and a second vibration arm forming region in which a second vibration arm is formed, T2 is a thickness of the protective film in a groove forming region in which a groove is formed, and T3 is a thickness of the protective film in a region of the first vibration arm forming region and the second vibration arm forming region excluding the groove forming region.

Abstract: A method of manufacturing a vibration element includes: a first protective film forming step of forming a first protective film on a first substrate surface of a crystal substrate; a first dry etching step of dry-etching the crystal substrate via the first protective film; a second protective film forming step of forming a second protective film on a second substrate surface of the crystal substrate; and a second dry etching step of dry-etching the crystal substrate via the second protective film. A relationship of T1<T2<T3 or T4<T5<T6 is satisfied, in which T1 and T4 are thicknesses of the first and second protective films in an inter-arm region, respectively, T2 and T5 are thicknesses of the first and second protective films in first and second groove forming regions, respectively, and T3 and T6 are thicknesses of the first and second protective films in first and second bank portion forming regions, respectively.

Abstract: A vibration element includes a base and a vibrating arm extending from the base. The vibrating arm includes an arm positioned between the base and a weight. A weight film is disposed on the weight. The weight has a first principal surface and a second principal surface in a front and back relationship with respect to a center plane of the arm. A center of gravity of the weight is located between the first principal surface and the center plane of the arm. A center of gravity of the weight film is located between the second principal surface and the center plane of the arm.

Abstract: A method for manufacturing a vibrator device includes a first dry etching step of dry-etching a quartz crystal substrate having a first surface and a second surface from the side facing the first surface to form first grooves and part of the outer shapes of a first vibrating arm and a second vibrating arm, a second dry etching step of dry-etching the quartz crystal substrate from the side facing the second surface to form second grooves and part of the outer shapes of the first vibrating arm and the second vibrating arm, and thereafter, a wet etching step of wet-etching the side surfaces of the first vibrating arm and the second vibrating arm.

Abstract: A gyro vibrating element includes a drive signal pattern including a drive signal electrode to which a drive signal is applied and a drive signal wire connected to the drive signal electrode, a first detection signal pattern including a first detection electrode that outputs a first detection signal and a first detection signal wire connected to the first detection electrode, the first detection signal pattern being capacitively coupled to the drive signal pattern, and a second detection signal pattern including a second detection electrode that outputs a second detection signal opposite in phase to the first detection signal and a second detection signal wire connected to the second detection electrode, the second detection signal pattern being capacitively coupled to the drive signal pattern. Any one of the first detection signal pattern, the second detection signal pattern, and the drive signal pattern includes an adjustment pattern for adjusting an area of the signal pattern.

Abstract: Provided are a computer program, a method, and a server in which a possibility that a load on display control increases is reduced, compared to the related art. According to an exemplary embodiment of such a configuration, first data relevant to a first position in a virtual space in which a first avatar manipulated by using a first terminal of a first user exists is acquired, whether or not a first condition is satisfied is determined, second data is received in a case where it is determined that the first condition is satisfied, control data for controlling a display unit of the first terminal such that at least the virtual object is displayed on the display unit of the first terminal is decided on the basis of the second data, and the display unit is controlled on the basis of the control data.

Abstract: The vibrator device includes: a base; a circuit element disposed on the base; a vibrating element disposed to at least partially overlap the circuit element in a plan view; and a support substrate that is disposed between the circuit element and the vibrating element and supports the vibrating element. In addition, the vibrating element has a frequency adjustment portion that performs frequency adjustment by removing at least a part of the vibrating element, and the support substrate includes a base portion that supports the vibrating element, a support portion that supports the base portion, a beam portion that couples the base portion the support portion, and a shielding portion that is connected to the beam portion, overlaps the frequency adjustment portion in a plan view, and has light shielding properties.

Abstract: A method for manufacturing a vibration element includes: a first dry etching step of dry etching the quartz crystal substrate from a first surface and forming first grooves and contours of a first vibrating arm and a second vibrating arm on the first surface; and a second dry etching step of dry etching the quartz crystal substrate from a second surface side and forming second grooves and contours of the first vibrating arm and the second vibrating arm on the second surface, in which Wa/Aa<1 in at least one of the first and second dry etching steps, Wa is a depth of the first and second grooves formed in the first and second dry etching steps, and Aa is a depth of the contours formed in the first and second dry etching steps.