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公开(公告)号：US20220108936A1
公开(公告)日：2022-04-07
申请号：US17494611
申请日：2021-10-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shunji YOSHIMI , Yuji TAKEMATSU , Yukiya YAMAGUCHI , Takanori UEJIMA , Satoshi GOTO , Satoshi ARAYASHIKI
IPC: H01L23/367 , H01L23/66 , H01L23/31
Abstract: In a semiconductor module, a first conductive portion is raised on a lower surface of a first member to which a second member including a semiconductor element and being smaller than the first member in plan view is joined. A second conductive portion is raised at the second member in the same direction as the first conductive portion. The first and second members are mounted on a module substrate with the interposed first and second conductive portions. A sealing material is disposed on a mounting surface of the module substrate, while covering at least an area of the first member. The sealing material has a top surface facing in the same direction as the top surface of the first member and side surfaces connected to its top surface. A metal film is disposed on the top and side surfaces of the sealing material and side surfaces of the module substrate.
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公开(公告)号：US20210336592A1
公开(公告)日：2021-10-28
申请号：US17241581
申请日：2021-04-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi ARAYASHIKI , Satoshi TANAKA , Fumio HARIMA , Satoshi GOTO
Abstract: A power amplifier circuit includes a first amplifier circuit configured to amplify a first signal of a first frequency band and output a first amplified signal having a first power, a second amplifier circuit configured to amplify a second signal of the first frequency band or a second frequency band different from the first frequency band and output a second amplified signal having a second power different from the first power, and a first variable adjustment circuit disposed between the second amplifier circuit and a first circuit subsequent to the second amplifier circuit, the first variable adjustment circuit being configured to be capable of adjusting a first impedance of the first circuit seen from the second amplifier circuit.
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公开(公告)号：US20210135630A1
公开(公告)日：2021-05-06
申请号：US17085228
申请日：2020-10-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi TANAKA , Satoshi ARAYASHIKI , Kenji MUKAI
Abstract: A power amplifier circuit includes a first power supply terminal electrically connected to a first power amplifier; a second power supply terminal electrically connected to a second power amplifier subsequent to the first power amplifier; a first external power supply line configured to electrically connect a power supply circuit configured to output a power supply potential corresponding to an amplitude level of a high-frequency input signal and the first power supply terminal; and a second external power supply line configured to electrically connect the power supply circuit and the second power supply terminal. An inductance value of the first external power supply line is higher than an inductance value of the second external power supply line.
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公开(公告)号：US20220200551A1
公开(公告)日：2022-06-23
申请号：US17644035
申请日：2021-12-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Mitsunori SAMATA , Satoshi ARAYASHIKI , Koshi HIMEDA , Masayuki AOIKE
Abstract: A power amplification device includes a first member in which a first circuit is formed, a second member in which a second circuit is formed, and a member-member connection conductor that electrically connects the first circuit and the second circuit to each other. The second member is mounted on the first member. The second circuit includes a first amplifier, which amplifies a radio frequency signal to output a first amplified signal. The first circuit includes a control circuit that controls an operation of the second circuit. At least part of a first termination circuit, which is connected to the first amplifier through the member-member connection conductor and which attenuates a harmonic wave component of the first amplified signal, is formed in the first member.
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公开(公告)号：US20210376799A1
公开(公告)日：2021-12-02
申请号：US17333649
申请日：2021-05-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi TANAKA , Fumio HARIMA , Satoshi ARAYASHIKI
Abstract: A control circuit is configured to control a Doherty amplifier including a carrier amplifier and a peak amplifier. The control circuit includes a resistor having a resistance value that is irreversibly adjustable. The resistor is configured to determine, based on the resistance value, a bias of the peak amplifier. The control circuit controls a Doherty amplifier.
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Patent Agency Ranking
公开(公告)号：US20210273611A1
公开(公告)日：2021-09-02
申请号：US17323505
申请日：2021-05-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi TANAKA , Satoshi ARAYASHIKI , Satoshi GOTO , Yusuke TANAKA
Abstract: A power amplifier circuit includes a first transistor having an emitter electrically connected to a common potential, a base to which a first high-frequency signal is input, and a collector from which a third high-frequency signal is output; a second transistor having an emitter electrically connected to the common potential, a base to which a second high-frequency signal is input, and a collector from which a fourth high-frequency signal is output; a first capacitance circuit electrically connected between the collector of the second transistor and the base of the first transistor; and a second capacitance circuit electrically connected between the collector of the first transistor and the base of the second transistor.
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公开(公告)号：US20190190563A1
公开(公告)日：2019-06-20
申请号：US16215777
申请日：2018-12-11
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi SAKURAI , Satoshi ARAYASHIKI , Satoshi TANAKA , Kyoichi HIRAYAMA , Tomohito ITO , Kenta KURAHASHI
CPC classification number: H04B1/48 , H04B1/0057
Abstract: A high-frequency module includes a transmission signal amplifier that outputs a transmission signal to an antenna terminal side; a reception signal amplifier that amplifies a reception signal supplied from an antenna terminal; a switch that selectively connects the antenna terminal to either an output of the transmission signal amplifier or an input of the reception signal amplifier; and a directional coupler that is provided on a transmission signal path and detects a signal level of the transmission signal. The transmission signal amplifier is controlled by a first control signal supplied from a first control circuit. The reception signal amplifier is controlled by a second control signal supplied from a second control circuit. The switch is controlled by a switch control signal supplied from the first control circuit. The directional coupler is controlled by a coupler control signal supplied from the first control circuit.
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公开(公告)号：US20170359038A1
公开(公告)日：2017-12-14
申请号：US15600993
申请日：2017-05-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi TANAKA , Kazuo WATANABE , Takayuki TSUTSUI , Masao KONDO , Satoshi ARAYASHIKI , Fumio HARIMA , Masatoshi HASE
IPC: H03F3/24 , H04L5/14 , H03F3/21 , H03F3/195 , H04L5/00 , H03F1/56 , H03F1/02 , H03F3/00 , H04W88/00
CPC classification number: H03F3/245 , H03F1/0205 , H03F1/0272 , H03F1/0277 , H03F1/22 , H03F1/565 , H03F3/005 , H03F3/195 , H03F3/21 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2200/555 , H04L5/0007 , H04L5/14 , H04W88/00
Abstract: A power amplifier circuit includes first and second transistors and a first voltage output circuit. A radio frequency signal is input into a base of the first transistor. The first voltage output circuit outputs a first voltage in accordance with a power supply voltage. The first voltage is supplied to a base or a gate of the second transistor. An emitter or a source of the second transistor is connected to a collector of the first transistor. A first amplified signal generated by amplifying the radio frequency signal is output from a collector or a drain of the second transistor.
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公开(公告)号：US20230282620A1
公开(公告)日：2023-09-07
申请号：US18315855
申请日：2023-05-11
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yukiya YAMAGUCHI , Takanori UEJIMA , Motoji TSUDA , Yuji TAKEMATSU , Shunji YOSHIMI , Satoshi ARAYASHIKI , Mitsunori SAMATA , Satoshi GOTO , Yutaka SASAKI , Masayuki AOIKE
IPC: H01L25/065
CPC classification number: H01L25/0657 , H01L2225/06589 , H01L2225/06517
Abstract: An integrated circuit includes a first base that has at least a part formed of a first semiconductor material and that includes an electric circuit, a second base that has at least a part formed of a second semiconductor material having a thermal conductivity lower than the first semiconductor material and that includes a power amplifier circuit, and a high thermal conductive member that has at least a part formed of a high thermal conductive material having a thermal conductivity higher than the first semiconductor material and that is disposed between the electric circuit and the power amplifier circuit. At least a part of the high thermal conductive member overlaps at least a part of the first base and at least a part of the second base in plan view. The high thermal conductive member is in contact with the first base and the second base.
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公开(公告)号：US20220021358A1
公开(公告)日：2022-01-20
申请号：US17374065
申请日：2021-07-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Makoto ITOU , Satoshi ARAYASHIKI , Satoshi GOTO
Abstract: A power amplifier circuit includes a first transistor having a first terminal to which a first signal inputs, a second transistor having a first terminal to which the first signal inputs, a first resistor having a first end to which a first bias current is supplied and a second end electrically connected to the first terminal of the first transistor, a second resistor having a first end to which a second bias current is supplied and a second end electrically connected to the first terminal of the second transistor, and a third resistor having a first end connected to the first end of the first resistor and a second end connected to the first end of the second resistor.
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