公开(公告)号：US20190100465A1

公开(公告)日：2019-04-04

申请号：US16001684

申请日：2018-06-06

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Jung Deok PARK ,  Chan Hee NAM ,  Dong Hun KIM

IPC: C04B35/468 ,  H01B3/12 ,  H01G4/12 ,  C04B35/49 ,  H01G4/30

Abstract: A multilayer ceramic capacitor includes: a ceramic body in which dielectric layers and first and second internal electrodes are alternately stacked; and first and second external electrodes formed on an outer surface of the ceramic body and electrically connected to the first and second internal electrodes, respectively. In a microstructure of the dielectric layer, dielectric grains are divided by a dielectric grain size into sections each having an interval of 50 nm, respectively, a fraction of the dielectric grains in each of the sections within a range of 50 nm to 450 nm is within a range of 0.025 to 0.20, and a thickness of the dielectric layer is 0.8 μm or less.

公开(公告)号：US20170271082A1

公开(公告)日：2017-09-21

申请号：US15277646

申请日：2016-09-27

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Dong Hun KIM ,  Jung Deok PARK ,  Chan Hee NAM ,  Jung Wook SEO

IPC: H01G4/30 ,  C01G25/02 ,  H01G4/005 ,  H01G4/12 ,  H01G4/228

CPC classification number: H01G4/30 ,  C01G23/006 ,  C01G25/02 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2006/40 ,  H01G4/005 ,  H01G4/1227 ,  H01G4/1245 ,  H01G4/228

Abstract: A multilayer ceramic capacitor includes a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on outer surfaces of the ceramic body, wherein the dielectric layer contains zirconium (Zr), a Zr content is 2×Zr/(Ba+Ca+Ti+Zr) based on an atomic ratio, a first crystal grain is composed of a core part having a Zr content of 3.0 at % or less and a shell part having a Zr content of 4.0 to 15.0 at %, and a number fraction of the first crystal grain to all crystal grains in the dielectric layer is 4% or more.

公开(公告)号：US20230343517A1

公开(公告)日：2023-10-26

申请号：US18214856

申请日：2023-06-27

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Chan Hee NAM ,  Song Je JEON ,  Chang Hak CHOI

IPC: H01G4/12

CPC classification number: H01G4/1227 ,  H01G4/30

Abstract: A dielectric ceramic composition includes a base material main component of barium titanate and a subcomponent. A microstructure of the dielectric ceramic composition after sintering includes a first grain having a Ca content of less than 3.5 at % and a second grain having a Ca content of 3.5 to 13.5 at %, and an area ratio of the second grain to an area of the total grains is 70% to 95%.

公开(公告)号：US20220220036A1

公开(公告)日：2022-07-14

申请号：US17697169

申请日：2022-03-17

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Jung Deok PARK ,  Chan Hee NAM ,  Dong Hun KIM

IPC: C04B35/468 ,  H01B3/12 ,  C04B35/49 ,  H01G4/30 ,  H01G4/12 ,  B32B18/00

Abstract: A multilayer ceramic capacitor includes: a ceramic body in which dielectric layers and first and second internal electrodes are alternately stacked; and first and second external electrodes formed on an outer surface of the ceramic body and electrically connected to the first and second internal electrodes, respectively. In a microstructure of the dielectric layer, dielectric grains are divided by a dielectric grain size into sections each having an interval of 50 nm, respectively, a fraction of the dielectric grains in each of the sections within a range of 50 nm to 450 nm is within a range of 0.025 to 0.20, and a thickness of the dielectric layer is 0.8 μm or less.

公开(公告)号：US20180033555A1

公开(公告)日：2018-02-01

申请号：US15478393

申请日：2017-04-04

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Jung Deok PARK ,  Chang Hak CHOI ,  Dong Hun KIM ,  Seung Ho LEE ,  Chan Hee NAM

IPC: H01G4/30 ,  H01G4/12 ,  H01G4/005 ,  C04B35/468

CPC classification number: H01G4/30 ,  C04B35/4682 ,  C04B35/64 ,  C04B2235/3201 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3249 ,  C04B2235/3262 ,  C04B2235/3267 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3418 ,  C04B2235/6025 ,  C04B2235/96 ,  H01G4/005 ,  H01G4/1227

Abstract: A dielectric ceramic composition contains: a barium titanate-based powder as a main ingredient; a first accessory ingredient containing Na; a second accessory ingredient containing Ba; and a third accessory ingredient containing Si. A content of the first accessory ingredient (based on moles of Na) is 0.3 to 4.0 moles per 100 moles of the main ingredient, and a Ba/Si ratio is in a range of 0.16 to 1.44.

公开(公告)号：US20150016017A1

公开(公告)日：2015-01-15

申请号：US14322521

申请日：2014-07-02

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Jae Sung PARK ,  Sang Hyuk KIM ,  Chan Hee NAM ,  Chang Hoon KIM ,  Seok Hyun YOON ,  Doo Young KIM

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

CPC classification number: H01G4/1227 ,  C04B35/4682 ,  C04B35/47 ,  C04B2235/3206 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/5472 ,  C04B2235/768 ,  C04B2235/77 ,  H01G4/12 ,  H01G4/30 ,  Y10T428/2982

Abstract: A dielectric composition may include a first dielectric powder; and a second dielectric powder having an average grain size smaller than that of the first dielectric powder and included in the dielectric composition in an amount of 0.01 to 1.5 parts by weight based on 100 parts by weight of the first dielectric powder, and a multilayer ceramic capacitor formed using the same. A multilayer ceramic capacitor may include: a ceramic body including dielectric layers; first and second internal electrodes disposed in the ceramic body to face each other with the respective dielectric layers interposed therebetween; and first and second external electrodes electrically connected to the first and second internal electrodes, respectively. The dielectric layers are formed of a dielectric composition including a first dielectric powder and a second dielectric powder having an average grain size smaller than that of the first dielectric powder and included in the dielectric composition in an amount of 0.01 to 1.5 parts by weight based on 100 parts by weight of the first dielectric powder.

Abstract translation: 电介质组合物可以包括第一电介质粉末; 以及相对于第一电介质粉末100重量份，平均粒径小于第一电介质粉末的第二电介质粉末，其包含在电介质组合物中的量为0.01〜1.5重量份，多层陶瓷 电容器使用相同。 多层陶瓷电容器可以包括：包括电介质层的陶瓷体; 设置在陶瓷体中的第一和第二内部电极相互面对地插入介电层; 以及分别与第一和第二内部电极电连接的第一和第二外部电极。 电介质层由包括第一电介质粉末和第二电介质粉末的电介质组合物形成，所述第一电介质粉末和第二电介质粉末的平均晶粒尺寸小于第一电介质粉末的平均晶粒尺寸，并且包含在介电组合物中的量为0.01至1.5重量份，基于 100重量份的第一电介质粉末。

公开(公告)号：US20140185183A1

公开(公告)日：2014-07-03

申请号：US13829712

申请日：2013-03-14

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Jae Sung PARK ,  Doo Young KIM ,  Jong Bong LIM ,  Chan Hee NAM ,  Seok Hyun YOON ,  Chang Hoon KIM

IPC: C04B35/468 ,  H01G4/12

CPC classification number: H01G4/1218 ,  C04B35/4682 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/782 ,  C04B2235/783 ,  C04B2235/785 ,  C04B2235/786 ,  H01G4/1227

Abstract: There is provided a multilayer ceramic capacitor, including: a ceramic body including dielectric layers; first and second internal electrodes disposed to face each other with the dielectric layer interposed therebetween within the ceramic body; a first external electrode electrically connected to the first internal electrodes; and a second external electrode electrically connected to the second internal electrodes, wherein the dielectric layer includes 40 to 99 wt % of barium titanate (BaTiO3) powder having an average grain size of 0.1 μm to 0.8 μm and 1 to 60 wt % of barium titanate zirconate (Ba(Ti1-xZrx)O3) having an average grain size of 0.2 to 2.0 μm.

Abstract translation: 提供了一种多层陶瓷电容器，包括：包括电介质层的陶瓷体; 第一和第二内部电极，其设置成彼此面对，其中介电层介于陶瓷体内; 电连接到所述第一内部电极的第一外部电极; 和与第二内部电极电连接的第二外部电极，其中，所述电介质层包含40〜99重量％的平均粒径为0.1μm〜0.8μm的钛酸钡（BaTiO 3）粉末和1〜60重量％的钛酸钡 平均粒径为0.2〜2.0μm的锆酸盐（Ba（Ti1-xZrx）O3）。

公开(公告)号：US20240212941A1

公开(公告)日：2024-06-27

申请号：US18390621

申请日：2023-12-20

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Chan Hee NAM ,  Oh Hun GWON ,  Jae Hyun PARK ,  Kwan Yeol PAEK ,  Chang Geon LEE ,  Hae Suk CHUNG

IPC: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/232

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/1227 ,  H01G4/2325

Abstract: A multilayer electronic component includes a body including a dielectric layer and internal electrodes; and external electrodes disposed on the body, wherein the dielectric layer includes a plurality of dielectric grains having a perovskite-based composition represented by ABO3, the A includes a first element including at least one of Bi, Na, K, Sr, and Ca, and the B includes a second element including Ti, wherein at least one of the plurality of dielectric grains has a core-shell structure, and a content of the first element included in the core portion is twice or more than a content of the first element included in the shell portion, and wherein the core portion includes a first core portion on an internal side and a second core portion covering at least a portion of the first core portion, and the second core portion includes Zr.

公开(公告)号：US20220199327A1

公开(公告)日：2022-06-23

申请号：US17692529

申请日：2022-03-11

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Chan Hee NAM ,  Song Je JEON ,  Chang Hak CHOI

IPC: H01G4/12

Abstract: A dielectric ceramic composition includes a base material main component of barium titanate and a subcomponent. A microstructure of the dielectric ceramic composition after sintering includes a first grain having a Ca content of less than 3.5 at % and a second grain having a Ca content of 3.5 to 13.5 at %, and an area ratio of the second grain to an area of the total grains is 70% to 95%.

公开(公告)号：US20160307701A1

公开(公告)日：2016-10-20

申请号：US15040237

申请日：2016-02-10

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Jae Sung PARK ,  Chan Hee NAM ,  Doo Young KIM ,  Seok Hyun YOON ,  Du Won CHOI ,  Chang Hoon KIM

IPC: H01G4/12 ,  H01G4/232 ,  C04B35/468 ,  H01G4/30

CPC classification number: H01G4/1218 ,  C04B35/4682 ,  C04B35/49 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3293 ,  C04B2235/3294 ,  C04B2235/3418 ,  C04B2235/36 ,  C04B2235/5436 ,  C04B2235/652 ,  C04B2235/6582 ,  C04B2235/781 ,  C04B2235/786 ,  H01G4/1227 ,  H01G4/1245 ,  H01G4/30

Abstract: There are provided a dielectric ceramic composition and a multilayer ceramic capacitor containing the same. The dielectric ceramic composition according to the present disclosure may contain a main base material ingredient and a first accessory ingredient, wherein the first accessory ingredient contains samarium (Sm) and other rare earth (RE) elements, and a ratio (a/b) of a content (a) of samarium (Sm) to a content (b) of other rare earth elements in the first accessory ingredient satisfies 0.1≦a/b≦2.0.

Abstract translation: 提供了一种介电陶瓷组合物和包含该电介质陶瓷组合物的多层陶瓷电容器。 根据本公开的电介质陶瓷组合物可以含有主要的基材成分和第一辅助成分，其中第一辅助成分含有钐（Sm）和其它稀土元素（RE）元素，并且比率（a / b） 第一辅助成分中钐（Sm）与其他稀土元素的含量（b）的含量（a）满足0.1≤a/b≤2.0。