Murata Manufacturing Co., Ltd.

Koichi Kanryo

Noriyuki Inoue

Akio Katsube

Akira Tanaka

Haruhiko Mori

Hiromasa Saeki

Akihiro Tsuru

Masato Higuchi

Takeo Arakawa

Atsushi Hirakawa

Yuji Kataoka

Kensuke Aoki

Ken Ito

Shunsuke Kitamura

Hiroki Endo

Hideyuki Fujiki

Shinobu Uesugi

A capacitor that includes a conductive base material with high specific surface area, a dielectric layer covering the conductive base material with high specific surface area, and an upper electrode covering the dielectric layer, in which the conductive base material with high specific surface area is formed of a metal sintered body as a whole.

Capacitor and method for manufacturing the same

A method for manufacturing an electronic device using ultrasonic joining, when the component members of the electronic device includes different structures. The method includes obtaining a joining condition that provides press-down amounts for the materials to be joined at predetermined values. The press-down amount generated by a horn and a supporting member biting into the materials during ultrasonic joining is predetermined for each specific structure of the component member of the electronic device.

Method for manufacturing electronic device

A capacitor that includes a conductive porous base material; a dielectric layer; and an electrode. The conductive porous base material, the dielectric layer, and the upper electrode are laminated together to constitute an effective part that accumulates charges in the dielectric layer when a voltage is applied between the conductive porous base material and the electrode. The conductive porous base material includes at least one groove having a width of 10 &#x3bc;m or more at &#xbd; of a depth of the at least one groove.

Capacitor

A module board includes a base substrate. Electronic components are mounted on a first principal surface of the base substrate. The mounted electronic components are sealed by a sealing resin containing an SiOfiller. A top surface and side surfaces of the sealing resin are covered with a shield layer containing a carbon filler, which is flat powder, as a conductive component. A terminal electrode is formed on a second principal surface of the base substrate that is disposed opposite to the first principal surface of the base substrate.

Module board

A method of manufacturing an electronic component module includes sealing a surface of an aggregate substrate on which a plurality of electronic components are mounted with a sealing resin and cutting boundary portions between electronic component modules from an outer surface of the sealing resin to a position at least partially through the aggregate substrate to form first grooves. A shield layer is formed by coating the outer surface of the sealing resin with a conductive resin and filling the first grooves with the conductive resin, and recesses are formed at positions on the shield layer where the first grooves are formed. The boundary portions between electronic component modules are cut along the corresponding recesses so that second grooves each having a width smaller than the width of a corresponding one of the recesses are formed, and the aggregate substrate is singulated into the individual electronic component modules.

Method of manufacturing electronic component module and electronic component module

A method for manufacturing an electronic component module is performed such that a shield layer can be formed as a thin film and an electronic component can be effectively shielded. A collective substrate including a plurality of electronic component modules including a plurality of electronic components is batch-sealed with a resin. A cut section is formed from a top surface of the sealed resin to a position that reaches a grounding electrode arranged in the substrate at a boundary section of the electronic component module so as to expose the grounding electrode. A conductive paste is applied on side surfaces and the top surface. Then, a conductive thin film is formed by spin coating, and the electronic component module is cut.

Method for manufacturing electronic component module

A surface acoustic wave device includes a surface acoustic wave element and a package. The package has a base member and a conductive cap member which are joined together by a sealing material so as to hermetically seal the surface acoustic wave element therein. The conductive cap member is coated with the sealing material on the entire surface thereof that is disposed opposite to the base member.

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Nagaokakyo, Japan

Koichi Kanryo