Abstract: A radio frequency module includes a mounting board, a first acoustic wave filter including a first support disposed at a first main surface of the mounting board, a second acoustic wave filter including a second support disposed on the first acoustic wave filter, and a shield electrode. The shield electrode covers at least a part of the resin layer. The first acoustic wave filter and the second acoustic wave filter pass signals to perform simultaneous communication. A main surface of the second acoustic wave filter on an opposite side from a first acoustic wave filter side is in contact with the shield electrode. A ground electrode of the mounting board is connected to a functional electrode of the first acoustic wave filter.

Abstract: An acoustic wave device includes a first transmission filter; and a second transmission filter stacked on the first transmission filter so that a first functional surface of the first transmission filter and a second functional surface of the second transmission filter face each other at a predetermined distance. The first transmission filter includes a first input terminal and a first acoustic wave resonator. The second transmission filter includes a second input terminal and a second acoustic wave resonator. The first acoustic wave resonator includes a first functional electrode formed on the first functional surface. The second acoustic wave resonator includes a second functional electrode formed on the second functional surface. In a plan view along a thickness direction of the first and second transmission filters, a first formation region of the first functional electrode and a second formation region of the second functional electrode do not overlap each other.

Abstract: A radio frequency module including a mounting substrate, a first electronic component, a second electronic component and a first connection terminal, a second connection terminal, a first resin layer, and a second resin layer. The second electronic component and the first connection terminal are disposed on a second main surface of the mounting substrate. The second connection terminal is connected to the first connection terminal, and is disposed on a side of the first connection terminal opposite to the mounting substrate side. The first resin layer covers at least a part of the second electronic component, and covers at least a part of the first connection terminals. The second resin layer is disposed on the first resin layer, and covers at least a part of the second connection terminal. The second connection terminal is located inside the first connection terminal in a plan view in a thickness direction of the mounting substrate.

Abstract: A radio-frequency module including a module substrate, a plurality of electronic components, a plurality of external connection terminals, a resin member, and a plurality of electrodes. The module substrate has first and second major surfaces that are opposite to each other. The plurality of electronic components are disposed at the major surface and at the major surface. The external connection terminals are disposed at the major surface and include a first external connection terminal. The resin member is disposed at the major surface. The plurality of electrodes are disposed at the major surface and coupled to the plurality of external connection terminals. The plurality of electronic components include a passive component disposed at the major surface. At least a portion of the first external connection terminal overlaps at least a portion of the passive component in plan view of the module substrate.

Abstract: A high-frequency module includes a first module substrate including first and second major surfaces, and a second module substrate including third and fourth major surfaces. The first major surface (faces the second major surface. Electronic components are disposed between the second and third major surfaces, on the first major surface, and on the fourth major surface. External connection terminals are disposed on the fourth major surface. A recess is formed in the first major surface. The electronic components include a first electronic component and a second electronic component (shorter in height than the first electronic component. The first electronic component is disposed in the recess, and the second electronic component is disposed in a region outside of the recess on the first major surface.

Abstract: A radio-frequency module includes: plural electronic components that include plural bare SAW devices and that are disposed between a major surface of a module substrate and a major surface of a module substrate, on a major surface of the module substrate, and on a major surface of the module substrate; plural external connection terminals disposed on the major surface; and resin members. The resin member covers the plural SAW devices but does not fill between central regions of the plural bare SAW devices in which the IDT electrodes are disposed and the major surface to which plural bump electrodes are joined. The plural bare SAW devices are disposed on the major surface, and no bare SAW devices are disposed between the major surfaces and on the major surface.

Abstract: A high-frequency module includes a module substrate including major surfaces opposite to each other; a module substrate including major surfaces opposite to each other, the major surface being disposed facing the major surface; a first electronic component including a filter coupled to a power amplifier; a second electronic component including a filter coupled to a low-noise amplifier; and a third electronic component (an integrated circuit) including the low-noise amplifier. The first electronic component is disposed one of between the major surfaces, on the major surface, and on the major surface. The second electronic component is disposed another one of between the major surface surfaces, on the major surface, and on the major surface. The third electronic component is disposed other one of between the major surfaces, on the major surface, and on the major surface.

Abstract: A radio-frequency module includes a module substrate having major surfaces opposite to each other; a module substrate having major surfaces opposite to each other, the major surface being disposed facing the major surface; a plurality of external connection terminals disposed on the major surface; a plurality of inter-substrate connection terminals disposed between the major surfaces to couple the module substrate to the module substrate; a first electronic component (integrated circuit) including a switch; a second electronic component including a filter coupled to a power amplifier via the switch; and a third electronic component including a filter coupled to the power amplifier via the switch. The first electronic component, the second electronic component, and the third electronic component are disposed in the same module substrate.

Abstract: A radio frequency module includes a first module substrate that has a first main surface facing a second main surface, a second module substrate that has a third main surface facing a fourth main surface, the third main surface facing the second main surface, multiple electronic components that are disposed between the second main surface and the third main surface, on or along the first main surface, and on or along the fourth main surface, and a LC component that is disposed in the module substrate and that is an inductor or a capacitor. A relative dielectric constant of the module substrate is higher than a relative dielectric constant of the module substrate.

Abstract: A radio frequency module includes a module substrate that has main surfaces that face each other, a module substrate that has main surfaces that face each other. A first main surface faces a second main surface. Multiple electronic components are disposed between the main surfaces, on or along one main surface, and on or along another main surface. Multiple external connection terminals are disposed on or along one main surface and are joined to the module substrate and a motherboard. An absolute value of a difference between a thermal expansion coefficient of the module substrate and a thermal expansion coefficient of the motherboard is smaller than an absolute value of a difference between a thermal expansion coefficient of the module substrate and the thermal expansion coefficient of the motherboard.

Abstract: A radio-frequency module includes module substrates, multiple electronic components, and multiple external connection terminals. The module substrate has major surfaces that are opposite to each other. The module substrate has major surfaces that are opposite to each other. The module substrate is disposed such that the major surface faces the major surface. The multiple electronic components are disposed between the major surfaces, at the major surface, or at the major surface. The external connection terminals are disposed at the major surface. The multiple electronic components include one or more first electronic components each including at least a transistor and one or more second electronic components each not including any transistor. At the major surface, at least one of the one or more first electronic components is disposed, and the one or more second electronic components are not disposed.

Abstract: A radio-frequency module includes a module substrate having major surfaces opposite to each other; a module substrate having major surfaces opposite to each other, the major surface being disposed facing the major surface; a first electronic component including a filter coupled to a power amplifier via a switch; a second electronic component including a filter coupled to the power amplifier via the switch; and a third electronic component including the switch. The first electronic component is disposed one of between the major surfaces, on the major surface, and on the major surface. The second electronic component is disposed another one of between the major surfaces, on the major surface, and on the major surface. The third electronic component is disposed other one of between the major surfaces, on the major surface, and on the major surface.

Abstract: A radio-frequency module includes a module substrate having major surfaces that are opposite to each other; a module substrate having major surfaces that are opposite to each other, the major surface being disposed facing the major surface; a plurality of electronic components disposed between the major surfaces, on the major surface, and on the major surface; and a plurality of external connection terminals disposed on the major surface. The plurality of electronic components include a power amplifier. The power amplifier includes major surfaces that are opposite to each other and a circuit section that is formed at a position closer to the major surface than the major surface, and includes an amplification transistor. The power amplifier has the major surface disposed facing the major surface, and a heat dissipation conductor extending along a direction from the major surface to the major surface is joined to the major surface.

Abstract: A high-frequency module includes a module substrate having major surfaces, and a module substrate having major surfaces. The major surface are disposed facing the major surface. A first electronic component includes a filter coupled to a power amplifier and a low-noise amplifier. A second electronic component includes a filter coupled to a low-noise amplifier. A third electronic component includes a switch coupled between filters and an antenna connection terminal. The first electronic component is disposed between the major surfaces, on the major surface, or on the major surface. The second electronic component is disposed between the major surfaces, on the major surface, or on the major surface where the first electronic component is not disposed. The third electronic component is disposed between the major surfaces, on the major surface, or on the major surface wherein neither of the first nor second electronic component is disposed.

Abstract: A radio-frequency module includes a module substrate having major surfaces opposite to each other; a module substrate having major surfaces opposite to each other, the major surface being disposed facing the major surface; a first electronic component disposed on the major surface; a second electronic component that includes a first electrode joined to the major surface and a second electrode joined to the major surface and that is disposed between the major surfaces; and a third electronic component disposed on the major surface; and an external connection terminal disposed on the major surface. The second electronic component is at least one of a chip inductor, a chip capacitor, and a chip resistor. The second electronic component is coupled via the first electrode to the first electronic component and is coupled via the second electrode to the third electronic component or external connection terminal.

Abstract: A radio frequency module includes a module substrate having a first main surface facing a second main surface, and a module substrate having a third main surface facing a fourth main surface. The third main surface faces the second main surface. Multiple electronic components, including a power amplifier, are disposed between the second and third main surfaces on the first main surface, and on the fourth main surface. Multiple external connection terminals are disposed on the third main surface. The power amplifier has a fifth main surface facing a sixth main surface and includes a circuit portion formed nearer to the fifth main surface than the sixth main surface and includes an amplifier transistor. in the power amplifier, the fifth main surface faces the third main surface, and the sixth main surface faces the second main surface. A heat dissipation conductor is joined to the main surface.

Abstract: A high-frequency module that includes: a module substrate including major surfaces opposite to each other; a module substrate including major surfaces opposite to each other, the major surface being disposed facing the major surface; a first electronic component including a filter coupled to a power amplifier; a second electronic component including a filter coupled to a low-noise amplifier; and a third electronic component including a PA controller which controls the power amplifier. The first electronic component is disposed one of between the major surfaces, on the major surface, and on the major surface. The second electronic component is disposed another one of between the major surface surfaces, on the major surface, and on the major surface. The third electronic component is disposed other one of between the major surfaces, on the major surface, and on the major surface.

Abstract: A radio-frequency module includes a module substrate having major surfaces; a module substrate having major surfaces, the major surface being disposed facing the major surface; and plural electronic components disposed between the major surfaces, on the major surface, and on the major surface. The plural electronic components include: a first electronic component including the power amplifier; a second electronic component including a low-noise amplifier; a switch that switches connection and disconnection between a first filter and the power amplifier; and a third electronic component including a PA controller to control the power amplifier or a switch controller to control the switch. The first to third electronic components are separately disposed on the major surface, between the major surfaces, and on the major surface.

Abstract: A radio-frequency module includes one or more first electronic components disposed on one main surface and one or more second electronic components disposed on another main surface. The one or more first electronic components include at least one of a filter whose passband includes a first band, a switch connected to the filter, a power amplifier connected to the filter, and a switch connected to the filter. The one or more second electronic components include at least one of a filter whose passband includes a second band in which the frequency of a harmonic wave of a signal in the first band is included, a switch connected to the filter, a low-noise amplifier connected to the filter, and an inductor connected to a path that forms a connection between the first low-noise amplifier and an antenna connection terminal.

Abstract: A radio frequency module includes a first module substrate that has a first main surface facing a second main surface, a second module substrate that has a third main surface facing a fourth main surface. The third main surface faces the second main surface. Multiple electronic components are disposed between the second main surface and the third main surface, on the first main surface, and on the fourth main surface. A first inductor is disposed in the first module substrate. The multiple electronic components include a first filter, and a switch that connects and disconnects an antenna connection terminal and the first filter. The first inductor is connected between the switch and the first filter. The first module substrate is thicker than the second module substrate.