公开(公告)号：US08687469B1

公开(公告)日：2014-04-01

申请号：US13708593

申请日：2012-12-07

Applicant: TDK Corporation ,  SAE Magnetics (H.K.) Ltd.

Inventor： Seiichi Takayama ,  Yasuhiro Ito ,  Nobuyuki Mori ,  Koji Shimazawa ,  Kazuaki Takanuki ,  Youichi Ando

IPC: G11B11/00

CPC classification number: G11B5/105 ,  G11B2005/0021

Abstract: A method of manufacturing an electronic device includes a first bonding step of bonding an electronic component and a first member together via a first bonding layer and a second bonding step of bonding the first member and a second member together via a second bonding layer after the first bonding step. The second bonding layer includes a bonding material layer made of a bonding material. In the second bonding step, with the bonding material interposed between the first and second members before being bonded together, the bonding material is heated and melted using light traveling through the first member. The first member is made of Si. The light has a wavelength in the range of 1100 to 15000 nm.

Abstract translation: 一种制造电子器件的方法包括：第一接合步骤，通过第一接合层将电子部件和第一部件接合在一起;以及第二接合步骤，通过第二接合层在第一接合层之后将第一部件和第二部件接合在一起 结合步骤。 第二接合层包括由接合材料制成的接合材料层。 在第二接合步骤中，在接合材料在被接合在一起之前介于第一和第二构件之间的接合材料中，使用通过第一构件的光进行接合材料的加热和熔化。 第一个成员是由Si制成。 光的波长在1100〜15000nm的范围内。

公开(公告)号：US11842851B2

公开(公告)日：2023-12-12

申请号：US17589206

申请日：2022-01-31

Applicant: TDK CORPORATION

Inventor： Takuma Ariizumi ,  Taku Murakami ,  Nobuto Morigasaki ,  Toshihiko Kaneko ,  Yasuhiro Ito

IPC: H01G4/12 ,  H01G4/30 ,  C04B35/468

CPC classification number: H01G4/1209 ,  C04B35/4682 ,  H01G4/30 ,  C04B2235/3206 ,  C04B2235/3224 ,  C04B2235/3236 ,  C04B2235/3418 ,  C04B2235/442 ,  C04B2235/768

Abstract: A dielectric composition includes a main phase and segregation phases each including RE (at least one rare earth element). The main phase includes a main component having a perovskite crystal structure of ABO3 (A is one or more selected from Ba, Sr, and Ca, and B is one or more selected from Ti, Zr, and Hf). The segregation phases are classified into first segregation phases whose atomic ratio of Si to RE is 0 or more and 0.20 or less and second segregation phases whose atomic ratio of Si to the RE is more than 0.20. 0≤S1/S2≤0.10 is satisfied on a cross section of the dielectric composition, where S1 is an area ratio of the first segregation phases, and S2 is an area ratio of the second segregation phases. An atomic ratio of Si to RE in the second segregation phases is 0.80 or less on average.

公开(公告)号：US11282622B2

公开(公告)日：2022-03-22

申请号：US16727553

申请日：2019-12-26

Applicant: TDK CORPORATION

Inventor： Takeshi Shibayama ,  Takashi Suzuki ,  Takahiro Sato ,  Kenji Komorita ,  Tatsuro Suzuki ,  Yukio Takahashi ,  Hiroyuki Tanoue ,  Yasuhiro Ito

IPC: B32B9/00 ,  H01F1/34 ,  C04B35/26

Abstract: A ferrite composition includes a main component and a sub-component. The main component includes 10.0 to 38.0 mol % of a Fe compound in terms of Fe2O3, 3.0 to 11.0 mol % of a Cu compound in terms of CuO, 39.0 to 80.0 mol % (excluding 39.0 mol %) of a Zn compound in terms of ZnO, and a balance of a Ni compound. The sub-component includes 10.0 to 23.0 parts by weight of a Si compound in terms of SiO2, 0 to 3.0 parts by weight (including 0 parts by weight) of a Co compound in terms of Co3O4, and 0.1 to 3.0 parts by weight of a Bi compound in terms of Bi2O3 with respect to 100 parts by weight of the main component.

公开(公告)号：US09966190B2

公开(公告)日：2018-05-08

申请号：US15466316

申请日：2017-03-22

Applicant: TDK CORPORATION

Inventor： Dan Sakurai ,  Nobuto Morigasaki ,  Tatsuya Ishii ,  Takuma Ariizumi ,  Shinsuke Hashimoto ,  Yasuhiro Ito

IPC: H01G4/12 ,  C04B35/49 ,  C04B35/468 ,  H01G4/248 ,  H01G4/30

CPC classification number: H01G4/1245 ,  C04B35/4682 ,  C04B35/49 ,  C04B35/6263 ,  C04B35/62675 ,  C04B35/62685 ,  C04B35/6342 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3249 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/442 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/6582 ,  C04B2235/6584 ,  C04B2235/663 ,  C04B2235/75 ,  C04B2235/768 ,  C04B2237/346 ,  C04B2237/68 ,  C04B2237/704 ,  H01G4/248 ,  H01G4/30

Abstract: A dielectric ceramic composition has good characteristics even under the high electric field intensity, and particularly good IR characteristic and the high temperature accelerated lifetime. The dielectric ceramic composition has a main component having a perovskite type compound shown by a compositional formula (Ba1-x-ySrxCay)m(Ti1-zZrz)O3, a first sub component having oxides of a rare earth element R, a second sub component as a sintering agent, wherein the dielectric particles has dielectric particles having high diffusion rate of the rare earth element, preferably of a complete solid solution particle, and when a concentration of Ti atom in the diffusion phase is 100 atom %, then an average concentration of the rare earth element R in the diffusion phase is 5 atom % or more, and an average concentration of Zr in the diffusion phase is 10 atom % or more.

公开(公告)号：US20170186536A1

公开(公告)日：2017-06-29

申请号：US15392493

申请日：2016-12-28

Applicant: TDK Corporation

Inventor： Masayuki SATO ,  Yosuke Konno ,  Shunichi Yuri ,  Takashi Morita ,  Tsutomu Odashima ,  Yasuhiro Ito

IPC: H01G4/12 ,  H01G4/30

CPC classification number: H01G4/1209 ,  B32B18/00 ,  C04B35/468 ,  C04B35/4682 ,  C04B35/6261 ,  C04B35/6264 ,  C04B35/6342 ,  C04B35/638 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3225 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3418 ,  C04B2235/442 ,  C04B2235/5445 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6582 ,  C04B2235/6583 ,  C04B2235/6588 ,  C04B2235/663 ,  C04B2235/785 ,  C04B2235/80 ,  C04B2237/346 ,  C04B2237/68 ,  C04B2237/704 ,  H01G4/1227 ,  H01G4/30

Abstract: A ceramic electronic component includes a dielectric layer and an electrode layer. The dielectric layer contains barium titanate and yttrium. The dielectric layer contains dielectric particles and Y—Ti segregation particles. An area ratio occupied by the Y—Ti segregation particles is 1.3% or less on a cross section of the dielectric layer.

公开(公告)号：US11639313B2

公开(公告)日：2023-05-02

申请号：US17551633

申请日：2021-12-15

Applicant: TDK CORPORATION

Inventor： Dan Sakurai ,  Yasuhiro Ito ,  Nobuto Morigasaki ,  Toshihiko Kaneko ,  Toshihiro Iguchi

IPC: C04B35/47 ,  H01B3/12

Abstract: A dielectric ceramic composition contains dielectric particles containing a main component represented by a composition formula (Ba1-x-ySrxCay)m(Ti1-zZrz)O3 and grain boundaries present between the dielectric particles. The values of m, x, y, and z in the composition formula are all molar ratios. In the composition formula, 0.9≤m≤1.4, 0≤x

公开(公告)号：US11072564B2

公开(公告)日：2021-07-27

申请号：US16511286

申请日：2019-07-15

Applicant: TDK CORPORATION

Inventor： Takuma Ariizumi ,  Toshihiko Kaneko ,  Nobuto Morigasaki ,  Yasuhiro Ito

IPC: C04B35/47 ,  C04B35/468 ,  C04B35/49 ,  H01G4/12 ,  H01G4/005 ,  C04B35/628 ,  H01G4/30 ,  C04B111/94 ,  C04B111/00

Abstract: A dielectric ceramic composition having improved insulation specific resistance and a highly accelerated lifetime. The dielectric ceramic composition includes a dielectric particle having a core-shell structure including a main component expressed by a general formula ABO3, where A is Ba and the like, and B is Ti and the like), and a rare earth element component R, in which a shell part of the core-shell structure has an average rare earth element concentration C of 0.3 atom % or more. The rare earth element has a specified concentration gradient or concentration variation.

公开(公告)号：US10074480B2

公开(公告)日：2018-09-11

申请号：US15466224

申请日：2017-03-22

Applicant: TDK CORPORATION

Inventor： Dan Sakurai ,  Nobuto Morigasaki ,  Tatsuya Ishii ,  Takuma Ariizumi ,  Shinsuke Hashimoto ,  Yasuhiro Ito

IPC: C04B35/49 ,  H01G4/12 ,  C04B35/626 ,  C04B35/63 ,  C04B35/64 ,  H01G4/012 ,  H01G4/248 ,  H01G4/30

CPC classification number: H01G4/1245 ,  C01G25/006 ,  C04B35/4682 ,  C04B35/49 ,  C04B35/6261 ,  C04B35/62675 ,  C04B35/6303 ,  C04B35/638 ,  C04B35/64 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3236 ,  C04B2235/3241 ,  C04B2235/3249 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3287 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/652 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/6584 ,  C04B2235/662 ,  C04B2235/768 ,  C04B2235/81 ,  C04B2235/96 ,  H01G4/012 ,  H01G4/1227 ,  H01G4/248 ,  H01G4/30

Abstract: A dielectric ceramic composition having good characteristic even under high electric field intensity, and particularly good IR characteristic and high temperature accelerated lifetime. The present invention is a dielectric ceramic composition comprising, a main component comprising a perovskite type compound shown by a compositional formula (Ba1-x-ySrxCay)m(Ti1-zZrz)O3, a first sub component comprising oxides of a rare earth element, a second sub component as a sintering agent, wherein said dielectric ceramic composition is a complete solid solution particle wherein the rare earth element is solid dissolved to entire dielectric particle, or a core-shell particle having high ratio of the diffusion phase, and comprises the dielectric particle having 5 to 20 atom % of the average concentration of the rare earth element in the diffusion phase, and having uniform concentration distribution of the rare earth element in the diffusion phase.

公开(公告)号：US09818545B2

公开(公告)日：2017-11-14

申请号：US15392665

申请日：2016-12-28

Applicant: TDK Corporation

Inventor： Masayuki Sato ,  Yosuke Konno ,  Shunichi Yuri ,  Yasuhiro Ito ,  Tsutomu Odashima ,  Yushi Kanou

IPC: H01G4/10 ,  C04B35/468 ,  H01G4/30 ,  H01G4/12

CPC classification number: H01G4/30 ,  B32B18/00 ,  C04B35/4682 ,  C04B35/4686 ,  C04B35/638 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/5445 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6584 ,  C04B2235/6588 ,  C04B2235/785 ,  C04B2235/79 ,  C04B2235/85 ,  C04B2237/346 ,  C04B2237/68 ,  H01G4/1227

Abstract: A ceramic electronic component includes a dielectric layer and an electrode layer. The dielectric layer contains a plurality of ceramic particles and grain boundary phases present therebetween. A main component of the ceramic particles is barium titanate. An average thickness of the grain boundary phases is 1.0 nm or more. A thickness variation σ of the grain boundary phases is 0.1 nm or less.

公开(公告)号：US09659582B2

公开(公告)日：2017-05-23

申请号：US13750499

申请日：2013-01-25

Applicant: TDK CORPORATION ,  SAE MAGNETICS (H.K.) LTD.

Inventor： Seiichi Takayama ,  Yasuhiro Ito ,  Nobuyuki Mori ,  Koji Shimazawa ,  Kazuaki Takanuki ,  Youichi Ando

IPC: G11B5/00 ,  G11B5/31 ,  G11B5/455 ,  G11B5/105 ,  G11B5/60

CPC classification number: G11B5/105 ,  G11B5/3166 ,  G11B5/455 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49036

Abstract: A method of manufacturing an electronic device includes a positioning step of positioning a first member supporting a laser diode with respect to a second member having a waveguide, a bonding step of bonding the first member and the second member together, and a checking step of checking the accuracy of positioning of the first member with respect to the second member. In the positioning step, the laser diode is energized to allow laser light to be emitted, and the laser light is allowed to be incident on the incidence end of the waveguide. In the bonding step, a bonding material is melted by irradiating the first member with heating light while the laser diode is not energized. In the checking step, the laser diode is energized again.