-
公开(公告)号:US20210202177A1
公开(公告)日:2021-07-01
申请号:US17131888
申请日:2020-12-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yuta KUROSU , Yuta SAITO , Masahiro WAKASHIMA , Daiki FUKUNAGA , Yu TSUTSUI
Abstract: A multilayer ceramic capacitor includes a second alloy portion including one metal element provided in a greatest amount among metal elements of an internal electrode layer, and one or more metal elements among a metal group including Sn, In, Ga, Zn, Bi, Pb, Cu, Ag, Pd, Pt, Ph, Ir, Ru, Os, Fe, V, and Y is provided between a second dielectric ceramic layer and a first internal electrode layer, and between a second dielectric ceramic layer and a second internal electrode layer, respectively.
-
公开(公告)号:US20210202171A1
公开(公告)日:2021-07-01
申请号:US17131893
申请日:2020-12-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yu TSUTSUI , Yuta KUROSU , Daiki FUKUNAGA , Yuta SAITO , Masahiro WAKASHIMA
Abstract: A multilayer ceramic capacitor includes, in at least one of a region between an end of a first internal electrode layer which is not connected to a second external electrode and the second external electrode, and a region between an end of a second internal electrode layer which is not connected to a first external electrode and the first external electrode, in a length direction, a defect portion provided on a plane including a stacking direction and a width direction, such that the defect portion is located between the first dielectric ceramic layers in the stacking direction and is located between the second dielectric ceramic layer and the third dielectric ceramic layer in the width direction.
-
公开(公告)号:US20210202181A1
公开(公告)日:2021-07-01
申请号:US17131899
申请日:2020-12-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Masahiro WAKASHIMA , Yuta SAITO , Yuta KUROSU , Daiki FUKUNAGA , Yu TSUTSUI
Abstract: In a multilayer ceramic capacitor includes, in a plane including a center portion in a length direction, and a stacking direction and a width direction of a first dielectric ceramic layer, where a thickness at a center portion in the stacking direction is T1, a thickness at an end of the first dielectric ceramic layer in the width direction is T2, and respective thicknesses between an end of a first internal electrode layer in the length direction not connected to a second external electrode, and the second external electrode, and between an end of the second internal electrode layer in the length direction not connected to the first external electrode, and the first external electrode is T3, a difference in thickness between T1 and T2 is within about 10% of T1, and a thickness of T3 is greater than T1 and T2 and a difference thereof is about 10% or more of T1 and T2.
-
公开(公告)号:US20210202180A1
公开(公告)日:2021-07-01
申请号:US17131898
申请日:2020-12-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Daiki FUKUNAGA , Yuta KUROSU , Yuta SAITO , Masahiro WAKASHIMA , Yu TSUTSUI
Abstract: A multilayer ceramic capacitor includes a third segregation by each of metal elements of a first segregation and a second segregation is provided at each of a first corner region in which an end in a length direction in which the first segregation is provided overlaps an end in a width direction in which the second segregation is provided in a first internal electrode layer, and a second corner region in which an end in the length direction in which the second segregation is provided overlaps an end in the width direction in which the second segregation is provided in a second internal electrode layer.
-
公开(公告)号:US20240087814A1
公开(公告)日:2024-03-14
申请号:US18519243
申请日:2023-11-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yuta KUROSU , Yuta SAITO , Masahiro WAKASHIMA , Daiki FUKUNAGA , Yu TSUTSUI
CPC classification number: H01G4/30 , H01G4/008 , H01G4/1218 , H01G4/2325 , H01G4/248
Abstract: A multilayer ceramic capacitor includes a second alloy portion including one metal element provided in a greatest amount among metal elements of an internal electrode layer, and one or more metal elements among a metal group including Sn, In, Ga, Zn, Bi, Pb, Cu, Ag, Pd, Pt, Ph, Ir, Ru, Os, Fe, V, and Y is provided between a second dielectric ceramic layer and a first internal electrode layer, and between a second dielectric ceramic layer and a second internal electrode layer, respectively.
-
公开(公告)号:US20230178305A1
公开(公告)日:2023-06-08
申请号:US18103054
申请日:2023-01-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yuta KUROSU , Yuta SAITO , Masahiro WAKASHIMA , Daiki FUKUNAGA , Yu TSUTSUI
CPC classification number: H01G4/30 , H01G4/2325 , H01G4/248 , H01G4/1218 , H01G4/008
Abstract: A multilayer ceramic capacitor includes a second alloy portion including one metal element provided in a greatest amount among metal elements of an internal electrode layer, and one or more metal elements among a metal group including Sn, In, Ga, Zn, Bi, Pb, Cu, Ag, Pd, Pt, Ph, Ir, Ru, Os, Fe, V, and Y is provided between a second dielectric ceramic layer and a first internal electrode layer, and between a second dielectric ceramic layer and a second internal electrode layer, respectively.
-
公开(公告)号:US20250166925A1
公开(公告)日:2025-05-22
申请号:US19027935
申请日:2025-01-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yuta KUROSU , Yuta SAITO , Masahiro WAKASHIMA , Daiki FUKUNAGA , Yu TSUTSUI
Abstract: A multilayer ceramic capacitor includes a second alloy portion including one metal element provided in a greatest amount among metal elements of an internal electrode layer, and one or more metal elements among a metal group including Sn, In, Ga, Zn, Bi, Pb, Cu, Ag, Pd, Pt, Ph, Ir, Ru, Os, Fe, V, and Y is provided between a second dielectric ceramic layer and a first internal electrode layer, and between a second dielectric ceramic layer and a second internal electrode layer, respectively.
-
公开(公告)号:US20220148812A1
公开(公告)日:2022-05-12
申请号:US17495853
申请日:2021-10-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yu TSUTSUI , Yuta KUROSU , Daiki FUKUNAGA , Yuta SAITO , Masahiro WAKASHIMA
Abstract: A method of manufacturing a multilayer ceramic capacitor includes printing an internal electrode pattern on a dielectric layer, forming a dielectric pattern in a region other than a region in which the internal electrode pattern is printed, laminating dielectric layers to form a multilayer body, exposing the internal electrode pattern and the dielectric pattern from a side surface of the multilayer body, removing at least a portion of the exposed dielectric pattern, and forming a dielectric gap layer on the side surface.
-
公开(公告)号:US20210202179A1
公开(公告)日:2021-07-01
申请号:US17131896
申请日:2020-12-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yuta SAITO , Yuta KUROSU , Masahiro WAKASHIMA , Daiki FUKUNAGA , Yu TSUTSUI
Abstract: In a multilayer ceramic capacitor, a first segregation defined by at least one metal element selected from a group consisting of Mg, Mn, and Si is present at each of an end in a length direction of a first internal electrode layer not connected to a second external electrode and an end in a length direction of a second internal electrode layer not connected to a first external electrode. A second segregation defined by at least one metal element selected from a group consisting of Mg, Mn, and Si is present at each of an end of the first internal electrode layer in a width direction and an end of the second internal electrode layer in the width direction.
-
公开(公告)号:US20210202178A1
公开(公告)日:2021-07-01
申请号:US17131891
申请日:2020-12-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yuta KUROSU , Yuta SAITO , Masahiro WAKASHIMA , Daiki FUKUNAGA , Yu TSUTSUI
IPC: H01G4/30 , H01G4/012 , H01G4/12 , H01G4/008 , C04B35/468
Abstract: In a multilayer ceramic capacitor, an intersection of an interface is defined by a second dielectric ceramic layer, a first internal electrode layer or a second internal electrode layer, and a third dielectric ceramic layer, on a plane including a length direction and a width direction, the second dielectric ceramic layer and the third dielectric ceramic layer include a near intersection region at or near the intersection, and an average particle size of dielectric particles in the near intersection region is smaller than average particle sizes of dielectric particles in the first dielectric ceramic layer, the second dielectric ceramic layer, and the third dielectric ceramic layer.
-
-
-
-
-
-
-
-
-