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公开(公告)号：US20250166932A1
公开(公告)日：2025-05-22
申请号：US19034365
申请日：2025-01-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi FURUKAWA
Abstract: A capacitor array that includes: a plurality of solid electrolytic capacitor elements, each of the solid electrolytic capacitor elements including an anode plate, a porous layer on at least one surface of the anode plate, a dielectric layer on the porous layer, and a cathode layer on the dielectric layer, each of the solid electrolytic capacitor elements being partitioned from each other by a slit-shaped removal part and having first and second main surfaces which oppose each other in a thickness direction thereof; and a sealing layer on the first main surface and the second main surface of each of the plurality of solid electrolytic capacitor elements, wherein the slit-shaped removal part has a taper that decreases in width proceeding from the first main surface toward the second main surface or from the second main surface toward the first main surface of the plurality of solid electrolytic capacitor elements.
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公开(公告)号：US20250125098A1
公开(公告)日：2025-04-17
申请号：US18990112
申请日：2024-12-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Akitomo TAKAHASHI , Takeshi FURUKAWA , Koshi HIMEDA
Abstract: A capacitor element that includes: a capacitor portion including an anode plate including a porous portion on a core portion, a dielectric layer on the porous portion, and a cathode layer on the dielectric layer; a sealing layer covering the capacitor portion; conductive interconnect layers on the sealing layer; and an outer insulating layer covering the sealing layer and the conductive interconnect layers. In a plan view from a thickness direction of the anode plate, a center-to-center distance between a first anode through conductor and a first cathode through conductor is equivalent to a center-to-center distance between the first anode through conductor and a second cathode through conductor, and a center-to-center distance between a fifth cathode through conductor and the first cathode through conductor is equivalent to a center-to-center distance between the fifth cathode through conductor and the second cathode through conductor.
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公开(公告)号：US20240395470A1
公开(公告)日：2024-11-28
申请号：US18797629
申请日：2024-08-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daiki HABU , Takeshi FURUKAWA
Abstract: A solid electrolytic capacitor including: an anode plate having a porous layer on at least one main surface thereof; a dielectric layer on the porous layer; a cathode layer on the dielectric layer, the cathode layer including a solid electrolyte layer on the surface of the dielectric layer, and a conductor layer on a surface of the solid electrolyte layer, and the solid electrolyte layer including a first solid electrolyte layer in a region including an inside of pores of the dielectric layer, and a second solid electrolyte layer covering the first solid electrolyte layer; a mask layer made of an insulating material and located in a region surrounding the cathode layer at a peripheral edge of the porous layer; and a columnar layer made of an insulating material and located at a distance from the mask layer in a region surrounded by the cathode layer in the porous layer.
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公开(公告)号：US20220189703A1
公开(公告)日：2022-06-16
申请号：US17653189
申请日：2022-03-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yasuhiro TAMATANI , Kazuya KUSUDA , Kazutoyo HORIO , Takeshi FURUKAWA
Abstract: An electrolytic capacitor that includes a resin molded body having opposed first and second end surfaces, the body including a stack that includes a capacitor element with an anode exposed at the first end surface, a dielectric layer on a surface of the anode, and a cathode opposite to the anode and exposed at the second end surface, and a sealing resin that encloses the stack; a first external electrode on the first end surface of the resin molded body and electrically connected to the anode; and a second external electrode on a second end surface of the resin molded body and electrically connected to the cathode, wherein the first external electrode and the second external electrode each include a resin electrode layer containing a conductive component and a resin component.
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公开(公告)号：US20240242892A1
公开(公告)日：2024-07-18
申请号：US18618058
申请日：2024-03-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Akitomo TAKAHASHI , Takeshi FURUKAWA , Koshi HIMEDA
Abstract: A capacitor element that includes: a capacitor portion including an anode plate having a porous portion on a core portion, a dielectric layer on the porous portion, and a cathode layer on the dielectric layer; a first cathode through conductor and a second cathode through conductor each penetrating the dielectric layer and the anode plate in a thickness direction and electrically connected to the cathode layer; and an anode through conductor penetrating the dielectric layer and the anode plate in the thickness direction and electrically connected to the anode plate, wherein, in a plan view from a thickness direction of the anode plate, a first center-to-center distance between the first anode through conductor and the first cathode through conductor is equivalent to a second center-to-center distance between the first anode through conductor and the second cathode through conductor.
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Patent Agency Ranking
公开(公告)号：US20230260718A1
公开(公告)日：2023-08-17
申请号：US18306554
申请日：2023-04-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi FURUKAWA
Abstract: A solid electrolytic capacitor element that includes: an anode plate having a first main surface and a second main surface which oppose each other in a thickness direction thereof, and made of a valve-action metal; a porous layer on at least one main surface of the anode plate; a dielectric layer on a surface of the porous layer; a cathode layer including a solid electrolyte layer on a surface of the dielectric layer; and a stress relaxation layer, wherein in a plan view of the first main surface, at least a portion of the stress relaxation layer overlaps with the anode plate, and the portion of the stress relaxation layer does not overlap with the cathode layer.
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公开(公告)号：US20230015094A1
公开(公告)日：2023-01-19
申请号：US17947238
申请日：2022-09-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi FURUKAWA
Abstract: A capacitor array that includes a solid electrolytic capacitor element including an anode plate made of a valve-action metal, a porous layer on at least one main surface of the anode plate, a dielectric layer on a surface of the porous layer, and a cathode layer including a solid electrolyte layer on a surface of the dielectric layer; a first anodic through-electrode electrically connected to the anode plate; a second anodic through-electrode electrically connected to the anode plate; and a first cathodic through-electrode electrically connected to the cathode layer, wherein a distance between the first cathodic through-electrode and the first anodic through-electrode is the same or substantially the same as a distance between the first cathodic through-electrode and the second anodic through-electrode in a plane view from a thickness direction of the anode plate.
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公开(公告)号：US20220278035A1
公开(公告)日：2022-09-01
申请号：US17749540
申请日：2022-05-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shinji OTANI , Akitomo TAKAHASHI , Takaaki SAKAI , Takeshi FURUKAWA , Tatsuya KITAMURA
IPC: H01L23/498 , H01L49/02
Abstract: A module is used in a semiconductor composite device that supplies a direct-current voltage adjusted by a voltage regulator including a semiconductor active element to a load. The module includes a capacitor layer including at least one capacitor portion forming a capacitor, a connection terminal used for electrical connection with at least one of the voltage regulator and the load, and a through-hole conductor formed to penetrate the capacitor portion in a thickness direction of the capacitor layer. The capacitor is electrically connected to at least one of the load and the voltage regulator with the through-hole conductor interposed between the load and the voltage regulator.
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公开(公告)号：US20220165508A1
公开(公告)日：2022-05-26
申请号：US17666961
申请日：2022-02-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazutaka NAKAMURA , Kohei SHIMADA , Takeshi FURUKAWA , Shinji OTANI , Akitomo TAKAHASHI
Abstract: A capacitor disposed inside a multilayer substrate that includes a conductive pattern on a surface thereof and an anode portion having a first conductive metal member and a porous portion disposed on a surface of the first conductive metal member, a cathode portion, and a dielectric layer disposed between the anode portion and the cathode portion. Moreover, the anode portion is led out to a surface side of the multilayer substrate by a connection electrode including an alloy layer containing a metal forming the first conductive metal member and a conductive layer disposed on the alloy layer, and in which the connection electrode is connected to the conductive pattern formed on the surface of the multilayer substrate.
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公开(公告)号：US20250166931A1
公开(公告)日：2025-05-22
申请号：US19007888
申请日：2025-01-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi FURUKAWA , Koshi HIMEDA , Shuhei YAMADA
Abstract: A capacitor array that includes: a plurality of capacitor units, where an actual overall capacitance corresponding to an electrostatic capacity for a total area of the capacitor units in an electrostatic capacity of an entirety of the capacitor array is larger than virtual overall capacitance obtained by multiplying a total number n of virtual units corresponding to an inter-center distance p between a first through-conductor and a second through-conductor when the electrostatic capacity Cunit per unit reaches a maximum value by the maximum value of the electrostatic capacity Cunit per unit.
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