公开(公告)号：US11472742B2

公开(公告)日：2022-10-18

申请号：US17115100

申请日：2020-12-08

Applicant: TDK CORPORATION

Inventor： Toshihiro Iguchi

IPC: C04B35/03 ,  H01G7/02

Abstract: A dielectric composition includes a main phase and a Ca—Si—P—O segregation phase. The main phase includes a main component expressed by ABO3. “A” includes at least one selected from calcium and strontium. “B” includes at least one selected from zirconium, titanium, hafnium, and manganese. The Ca—Si—P—O segregation phase includes at least calcium, silicon, and phosphorus.

公开(公告)号：US11443897B2

公开(公告)日：2022-09-13

申请号：US17243961

申请日：2021-04-29

Applicant: TDK CORPORATION

Inventor： Toshihiro Iguchi ,  Norihisa Ando ,  Kenya Tamaki ,  Kayou Matsunaga

IPC: H01G4/232 ,  H05K3/34 ,  H01G4/30 ,  H01G2/06 ,  H01G4/005

Abstract: An electronic component includes an element body, an external electrode, and a metal terminal. In the metal terminal, a base includes a first surface and a second surface opposing each other, and a pair of third surfaces coupling the first surface and the second surface. A first metal layer is disposed on the first surface and connected to solder with which the external electrode and the metal terminal are connected together. A second metal layer is disposed on the second surface. A coating layer is disposed on each of the third surfaces. The first metal layer and the second metal layer each include an outermost layer containing Sn. Each of the coating layer includes an outermost layer lower in solder wettability than the respective outermost layers of the first metal layer and the second metal layer.

公开(公告)号：US11443896B2

公开(公告)日：2022-09-13

申请号：US17373672

申请日：2021-07-12

Applicant: TDK CORPORATION

Inventor： Toshihiro Iguchi ,  Norihisa Ando

IPC: H01G4/232 ,  H01G2/06 ,  H01G4/30 ,  H01G4/12

Abstract: An electronic component includes an element body, a pair of external electrodes respectively disposed at both ends of the element body in a first direction, and a pair of metal terminals respectively connected to the pair of external electrodes with solder. Each metal terminal includes a connection opposing the corresponding external electrode in the first direction and formed with a plurality of grooves and includes a leg extending from the connection. The connection includes a pair of end edges separated from each other in a third direction intersecting with a second direction where the leg extends from the connection. The grooves extend in a direction different from the second direction and intersecting with the third direction so that the grooves are separated from one of the pair of end edges. A surface included in the connection and defining each of the grooves is in contact with the solder.

公开(公告)号：US20130222970A1

公开(公告)日：2013-08-29

申请号：US13773380

申请日：2013-02-21

Applicant: TDK Corporation

Inventor： Toshihiro Iguchi ,  Akitoshi Yoshii ,  Tatsuya Kojima ,  Satoshi Takagi

IPC: C04B35/50 ,  H01G4/12

CPC classification number: C04B35/50 ,  C01G33/006 ,  C01G35/006 ,  C01P2006/40 ,  C04B35/495 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3251 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/652 ,  C04B2235/656 ,  C04B2235/6562 ,  C04B2235/6582 ,  C04B2235/6588 ,  C04B2235/663 ,  C04B2235/76 ,  C04B2235/9615 ,  H01G4/1209 ,  H01G4/1254 ,  H01G4/30

Abstract: Dielectric ceramic composition comprising a compound shown by a general formula {A1-x(RE)2x/3}y-B2O5+y and has a tungsten bronze-type structure. In the formula, “A” is at least one selected from a group comprising Ba, Ca, Sr and Mg, “B” is at least one selected from Nb and Ta, “RE” is at least one selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and said “x” and “y” satisfies 0

Abstract translation: 电介质陶瓷组合物，其包含通式{A1-x（RE）2x / 3} y-B2O5 + y所示的化合物，并具有钨青铜型结构。 在该式中，“A”为选自Ba，Ca，Sr和Mg的组中的至少一种，“B”为选自Nb和Ta中的至少一种，“RE”为选自Sc，Y， La，Ce，Pr，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb和Lu，“x”和“y”分别满足0