Abstract: A resonator device includes: a base; a resonator element that includes a resonator substrate and an electrode; a conductive layer that is disposed on the base; a metal bump that is disposed between the conductive layer and the resonator element, and that electrically couples the conductive layer and the electrode while bonding the conductive layer and the resonator element; and at least one of a first low elastic modulus layer that is interposed between the base and the conductive layer, that overlaps the metal bump in a plan view of the base, and that has an elastic modulus smaller than that of the metal bump, and a second low elastic modulus layer that is interposed between the resonator substrate and the electrode, that overlaps the metal bump in the plan view of the base, and that has an elastic modulus smaller than that of the metal bump.

Abstract: An atomic oscillator includes an atom cell that includes walls defining an internal space in which alkali metal atoms are contained, a light emitting element that emits light for exciting the alkali metal atoms, and a light detecting element that detects the light transmitted through the atom cell, in which the atom cell includes a first portion in which gaseous alkali metal atoms are contained and through which light from the light emitting element passes along an x-axis, a second portion in which liquid or solid alkali metal atoms are contained, and a third portion that is positioned between the first portion and the second portion and couples the first portion and the second portion, and in the third portion, a distance between two walls facing each other along a y-axis orthogonal to the x-axis decreases from the first portion toward the second portion along the y-axis at a constant decrease rate.

Abstract: An atomic oscillator includes: a light-emitting element; an atom cell that includes a first surface on which light beams from the light-emitting element are incident and a second surface from which the light beams incident on the first surface are emitted and accommodates alkali metal atoms in a gas state; a shield that accommodates the atom cell and has a magnetic shielding property, the shield having an opening; a heat transfer member that is in contact with a portion of the atom cell via an opening of the shield and has a thermal conductivity higher than a thermal conductivity of the atom cell; a temperature control element that is in contact with the heat transfer member and controls a temperature of the atom cell; and a light-receiving element that receives the light beams emitted from the second surface.

Abstract: An atomic oscillator includes an atom cell that includes walls defining an internal space in which alkali metal atoms are contained, a light emitting element that emits light for exciting the alkali metal atoms, and a light detecting element that detects the light transmitted through the atom cell, in which the atom cell includes a first portion in which gaseous alkali metal atoms are contained and through which light from the light emitting element passes along an x-axis, a second portion in which liquid or solid alkali metal atoms are contained, and a third portion that is positioned between the first portion and the second portion and couples the first portion and the second portion, and in the third portion, a distance between two walls facing each other along a y-axis orthogonal to the x-axis decreases from the first portion toward the second portion along the y-axis at a constant decrease rate.

Abstract: An atomic oscillator includes an atom cell that accommodates an alkali metal atom therein, a container that houses the atom cell, a substrate on which the container is disposed, and a thermally insulating mount that is fixed to the substrate and positions the container relative to the substrate.

Abstract: An atomic oscillator includes a light source unit including a light source and a first temperature control device controlling the light source to have a first temperature, an atom cell unit including an atom cell accommodating an alkali metal atom and that light emitted from the light source enters and a second temperature control device controlling the atom cell to have a second temperature different from the first temperature, and a container accommodating the light source unit and the atom cell unit and has a first surface and a second surface different from the first surface. The light source unit is mounted to the first surface, and an air gap is present between the light source unit and the second surface. The atom cell unit is mounted to the second surface, and an air gap is present between the atom cell unit and the first surface.

Abstract: An atomic oscillator includes: a light-emitting element; an atom cell that includes a first surface on which light beams from the light-emitting element are incident and a second surface from which the light beams incident on the first surface are emitted and accommodates alkali metal atoms in a gas state; a shield that accommodates the atom cell and has a magnetic shielding property, the shield having an opening; a heat transfer member that is in contact with a portion of the atom cell via an opening of the shield and has a thermal conductivity higher than a thermal conductivity of the atom cell; a temperature control element that is in contact with the heat transfer member and controls a temperature of the atom cell; and a light-receiving element that receives the light beams emitted from the second surface.

Abstract: An atomic oscillator includes an atom cell that accommodates an alkali metal atom, a container that accommodates the atom cell, a heating device that is disposed in the container and heats the atom cell, a substrate on which the container is disposed, and a positioning member that is disposed on the substrate and positions the container. The atom cell is pressed against the container toward the heating device. The heating device is pressed against the container toward the atom cell, and the container is in turn pressed against the positioning member.

Abstract: A quantum interference device includes an atom cell module including an atom cell in which alkali metal is encapsulated, a light source that emits light adapted to excite the alkali metal, and a heater that heats the atom cell and the light source, a package that houses the atom cell module, and a controller adapted to control drive of the heater so that the light source becomes at a set temperature, R?(Tv?Tout)/Qv is satisfied, where R [° C./W] is a thermal resistance between the atom cell module and the package, Tv [° C.] is the set temperature, Tout [° C.] is an upper limit value of a usage environmental temperature set to a value lower than the set temperature, Qv [W] is an amount of heat generation of the light source.

Abstract: An atomic oscillator includes an atom cell that accommodates an alkali metal atom, a container that accommodates the atom cell, a heating device that is disposed in the container and heats the atom cell, a substrate on which the container is disposed, and a positioning member that is disposed on the substrate and positions the container. The atom cell is pressed against the container toward the heating device. The heating device is pressed against the container toward the atom cell, and the container is in turn pressed against the positioning member.

Abstract: An atomic oscillator includes an atom cell that accommodates an alkali metal atom therein, a container that houses the atom cell, a substrate on which the container is disposed, and a thermally insulating mount that is fixed to the substrate and positions the container relative to the substrate.

Abstract: An atomic oscillator includes a light source unit including a light source and a first temperature control device controlling the light source to have a first temperature, an atom cell unit including an atom cell accommodating an alkali metal atom and that light emitted from the light source enters and a second temperature control device controlling the atom cell to have a second temperature different from the first temperature, and a container accommodating the light source unit and the atom cell unit and has a first surface and a second surface different from the first surface. The light source unit is mounted to the first surface, and an air gap is present between the light source unit and the second surface. The atom cell unit is mounted to the second surface, and an air gap is present between the atom cell unit and the first surface.

Abstract: An atomic oscillator includes a base, an atomic cell unit that is disposed on the base, a lid that constitutes an internal space accommodating the atomic cell unit together with the base, and a getter material that is disposed on the base with a gap with respect to the base in the internal space.

Abstract: A quantum interference device includes an atom cell module including an atom cell in which alkali metal is encapsulated, a light source that emits light adapted to excite the alkali metal, and a heater that heats the atom cell and the light source, a package that houses the atom cell module, and a controller adapted to control drive of the heater so that the light source becomes at a set temperature, R?(Tv?Tout)/Qv is satisfied, where R [° C./W] is a thermal resistance between the atom cell module and the package, Tv [° C.] is the set temperature, Tout [° C.] is an upper limit value of a usage environmental temperature set to a value lower than the set temperature, Qv [W] is an amount of heat generation of the light source.

Abstract: An electronic device has a package and a piezoelectric element accommodated in an accommodating space formed inside the package. The package has a frame-like metallization layer bonding a base substrate and a lid together and electrodes formed on and in the base substrate and electrically connected with the piezoelectric element. The metallization layer is insulated from the electrodes.

Abstract: An atomic oscillator includes a base, an atomic cell unit that is disposed on the base, a lid that constitutes an internal space accommodating the atomic cell unit together with the base, and a getter material that is disposed on the base with a gap with respect to the base in the internal space.

Abstract: An atomic cell manufacturing method includes a preparing process of preparing a structure that includes a wall portion which forms an inner space and a portion thereof is a light transmission portion, and in which liquid or solid alkaline metals are disposed in the light transmission portion, and an adjusting process of adjusting distribution such that alkaline metals are distributed so as to be intensively disposed on an outer circumferential portion side of the light transmission portion compared to a center portion of the light transmission portion, by heating the light transmission portion.

Abstract: An atomic oscillator includes: a gas cell which houses metal atoms; a heater which adjusts a temperature of the gas cell; and a package which houses the gas cell and the heater. The package includes a non-magnetic metal layer.

Abstract: An atomic cell manufacturing method includes a preparing process of preparing a structure that includes a wall portion which forms an inner space and a portion thereof is a light transmission portion, and in which liquid or solid alkaline metals are disposed in the light transmission portion, and an adjusting process of adjusting distribution such that alkaline metals are distributed so as to be intensively disposed on an outer circumferential portion side of the light transmission portion compared to a center portion of the light transmission portion, by heating the light transmission portion.

Abstract: An atomic oscillator includes: a base; a unit portion including a gas cell, in which alkali metal atoms are filled, and a heater that heats the gas cell; and a wiring line that electrically connects the base and the unit portion to each other and includes a portion having a cross-sectional area of 60 ?m2 or more and 100 ?m2 or less.