公开(公告)号：US20160027579A1

公开(公告)日：2016-01-28

申请号：US14803560

申请日：2015-07-20

Applicant: TDK CORPORATION

Inventor： Katsuyuki KURACHI ,  Tatsuo NAMIKAWA ,  Junji AOTANI ,  Yuuki ABURAKAWA ,  Shigeaki TANAKA

IPC: H01G4/12 ,  H01G4/33 ,  H01G4/012 ,  H01G4/30

CPC classification number: H01G4/12 ,  H01G4/015 ,  H01G4/224 ,  H01G4/33

Abstract: A thin film capacitor includes a pair of electrode layers, a dielectric layer existing between the pair of electrode layers, and a ceramic layer disposed on a surface opposite to the dielectric layer of at least one of the electrode layers.

Abstract translation: 薄膜电容器包括一对电极层，存在于该对电极层之间的电介质层和设置在与至少一个电极层的电介质层相对的表面上的陶瓷层。

公开(公告)号：US20160111211A1

公开(公告)日：2016-04-21

申请号：US14882013

申请日：2015-10-13

Applicant: TDK CORPORATION

Inventor： Junji AOTANI ,  Shigeaki TANAKA ,  Katsuyuki KURACHI ,  Tatsuo NAMIKAWA ,  Yuuki ABURAKAWA

IPC: H01G4/12 ,  H01G4/005 ,  H01G4/33 ,  H01G4/30

CPC classification number: H01G4/12 ,  H01G4/005 ,  H01G4/255 ,  H01G4/33

Abstract: A thin film capacitor comprising a lower electrode layer, an upper electrode layer, and a dielectric substance layer provided between the lower electrode layer and the upper electrode layer, wherein a dielectric patch member formed of a dielectric material is formed on a surface of the dielectric substance layer on an upper electrode layer side, a cross-sectional structure of the dielectric patch member has a taper angle of 1 to 25 degrees in a cross section perpendicular to the dielectric substance layer, the taper angle being an angle formed by (1) a tangential line tangent to an end portion of the dielectric patch member at a position that is 50% of a maximum height of the dielectric patch member and (2) a line being an interface between the dielectric substance layer and the upper electrode layer, and an area of the dielectric patch member is 100 to 900000 μm2.

Abstract translation: 一种薄膜电容器，包括设置在下电极层和上电极层之间的下电极层，上电极层和电介质层，其中由电介质材料形成的电介质贴片构件形成在电介质的表面上 在上电极层侧的物质层，电介质贴片部件的截面结构在与电介质层垂直的截面中具有1〜25度的锥角，该锥角为（1） 在电介质贴片构件的最大高度的50％的位置处与电介质贴片构件的端部相切的切线，以及（2）作为电介质层和上电极层之间的界面的线，以及 电介质贴片构件的面积为100〜900000μm2。

公开(公告)号：US20160163463A1

公开(公告)日：2016-06-09

申请号：US14953807

申请日：2015-11-30

Applicant: TDK CORPORATION

Inventor： Tatsuo NAMIKAWA ,  Junji AOTANI ,  Katsuyuki KURACHI ,  Yuuki ABURAKAWA ,  Shigeaki TANAKA

IPC: H01G4/30 ,  H01G4/224 ,  H01G4/228 ,  H01G4/008

CPC classification number: H01G4/33 ,  H01G4/008 ,  H01G4/224 ,  H01G4/228 ,  H01G4/30 ,  H01G4/306

Abstract: A thin film capacitor comprises: a laminated body that has a base electrode, a dielectric layer and an upper electrode layer; a protective layer covering the base electrode, the dielectric layer and the upper electrode layer, and includes a first through-hole that reaches the base electrode, and a second through-hole that reaches the upper electrode layer; a first extraction electrode in the first through-hole and electrically connected with the base electrode; a second extraction electrode in the second through-hole and electrically connected with the upper electrode layer; a first terminal electrode on the protective layer, and connected with the base electrode through the first extraction electrode; and a second terminal electrode on the protective layer, and connected with the upper electrode layer through the second extraction electrode. Young's modulus of the protective layer is equal to or higher than 0.1 GPa and equal to or lower than 2.0 GPa.

Abstract translation: 薄膜电容器包括：层叠体，其具有基极，电介质层和上电极层; 覆盖基极，电介质层和上电极层的保护层，并且包括到达基极的第一通孔和到达上电极层的第二通孔; 所述第一通孔中的第一引出电极与所述基极电连接; 所述第二通孔中的第二引出电极与所述上电极层电连接; 在保护层上的第一端子电极，并通过第一引出电极与基极连接; 和保护层上的第二端子电极，并通过第二引出电极与上部电极层连接。 保护层的杨氏模量等于或高于0.1GPa并且等于或低于2.0GPa。

公开(公告)号：US20170117096A1

公开(公告)日：2017-04-27

申请号：US15331447

申请日：2016-10-21

Applicant: TDK CORPORATION

Inventor： Junji AOTANI ,  Shigeaki TANAKA ,  Katsuyuki KURACHI ,  Tatsuo NAMIKAWA ,  Yuuki ABURAKAWA

IPC: H01G4/06

CPC classification number: H01G4/06 ,  H01G2/14 ,  H01G4/1227 ,  H01G4/33 ,  H01G4/35

Abstract: An electronic device sheet, comprising a pair of electrodes, a dielectric layer provided between the pair of electrodes, and one or more insulation patch members provided on one of principal surfaces of the dielectric layer, wherein the insulation patch member includes a boundary line having an undulating shape.

公开(公告)号：US20210272757A1

公开(公告)日：2021-09-02

申请号：US17165339

申请日：2021-02-02

Applicant: TDK CORPORATION

Inventor： Yuuki ABURAKAWA ,  Tatsuo NAMIKAWA ,  Akiyasu IIOKA ,  Hitoshi SAITA ,  Kazuhiro YOSHIKAWA

IPC: H01G4/33 ,  H01G4/008 ,  H01L23/64 ,  H01L23/498 ,  H01G4/30

Abstract: Disclosed herein a thin film capacitor that includes a lower electrode layer, an upper electrode layer, and a dielectric layer disposed between the lower electrode layer and the upper electrode layer. The dielectric layer has a through hole. An inner wall surface of the through hole has a first tapered surface and a second tapered surface surrounded by the first tapered surface. The first and second tapered surfaces are not covered with the upper electrode layer and have respective first and second taper angles with respect to a surface of the lower electrode layer. The second taper angle is smaller than the first taper angle.

公开(公告)号：US20210265116A1

公开(公告)日：2021-08-26

申请号：US17165229

申请日：2021-02-02

Applicant: TDK CORPORATION

Inventor： Yuuki ABURAKAWA ,  Tatsuo Namikawa ,  Akiyasu Iioka ,  Atsuo Matsutani ,  Hitoshi Saita ,  Kazuhiro Yoshikawa

IPC: H01G4/33 ,  H01G4/30 ,  H01G4/012 ,  H05K1/16 ,  H01L23/64 ,  H01L23/498 ,  H01G4/008

Abstract: Disclosed herein a thin film capacitor that includes a lower electrode layer, an upper electrode layer, and a dielectric layer disposed between the lower electrode layer and the upper electrode layer. The dielectric layer has a through hole. The upper electrode layer has a connection part connected to the lower electrode layer through the through hole and an electrode part insulated from the connection part by a slit. A surface of the lower electrode layer that contacts the connection part through the through hole includes an annular area positioned along an inner wall surface of the through hole and a center area surrounded by the annular area. The annular area is lower in surface roughness than the center area.

公开(公告)号：US20160020030A1

公开(公告)日：2016-01-21

申请号：US14799247

申请日：2015-07-14

Applicant: TDK CORPORATION

Inventor： Junji AOTANI ,  Shigeaki TANAKA ,  Katsuyuki KURACHI ,  Tatsuo NAMIKAWA ,  Yuuki ABURAKAWA

IPC: H01G4/33 ,  H01G4/06 ,  H01G4/012

CPC classification number: H01G4/33 ,  H01G4/01 ,  H01G4/012 ,  H01G4/015 ,  H01G4/12

Abstract: A thin film capacitor including a lower electrode layer, a dielectric layer provided on the lower electrode layer, and an upper electrode layer formed on the dielectric layer, wherein the dielectric layer includes a recessed portion in a portion on the upper face thereof, a cross-sectional structure perpendicular to the dielectric layer of the recessed portion has a cross-sectional taper angle of 1 degree or more and 25 degrees or less, and the distance between the bottom portion center and an outermost portion of the recessed portion is 20 times or more and 150 times or less a thickness of the dielectric layer.

Abstract translation: 一种薄膜电容器，包括下电极层，设置在下电极层上的电介质层和形成在电介质层上的上电极层，其中电介质层包括在其上表面上的部分中的凹部， 与凹部的电介质层垂直的截面结构的截面锥角为1度以上且25度以下，凹部的底部中心与最外侧部之间的距离为20倍， 介电层厚度的150倍以下。