公开(公告)号：US11621126B2

公开(公告)日：2023-04-04

申请号：US17467841

申请日：2021-09-07

Applicant: KEMET Electronics Corporation

Inventor： John Bultitude ,  Nathan A. Reed ,  Allen Templeton ,  James R. Magee ,  James Davis ,  Abhijit Gurav ,  Hunter Hayes ,  Hanzheng Guo

IPC: H01G4/12 ,  C04B35/465 ,  H01G4/30 ,  C04B35/50 ,  C04B35/495 ,  H01G4/40

Abstract: Provided is an improved multilayered ceramic capacitor and an electronic device comprising the multilayered ceramic capacitor. The multilayer ceramic capacitor comprises first conductive plates electrically connected to first external terminations and second conductive plates electrically connected to second external terminations. The first conductive plates and second conductive plates form a capacitive couple. A ceramic portion is between the first conductive plates and said second conductive plates wherein the ceramic portion comprises paraelectric ceramic dielectric. The multilayer ceramic capacitor has a rated DC voltage and a rated AC VPP wherein the rated AC VPP is higher than the rated DC voltage.

公开(公告)号：US20220076886A1

公开(公告)日：2022-03-10

申请号：US17467995

申请日：2021-09-07

Applicant: KEMET Electronics Corporation

Inventor： Hanzheng Guo ,  Abhijit Gurav

IPC: H01G4/12 ,  H01G4/30 ,  C04B35/465 ,  C04B35/495 ,  C04B35/50

Abstract: a dielectric ceramic composition comprising a main component comprising an oxide represented by: UaXbYcZd((Ca1-x-ySrxMy)m(Zr1-u-vTiuHfv)O3)1-a-b-c-d wherein the elements defined by U, X, Y, Z and M and subscripts a, b, c, d, x, y, m, u and v are defined.

公开(公告)号：US10147544B1

公开(公告)日：2018-12-04

申请号：US15601323

申请日：2017-05-22

Applicant: KEMET Electronics Corporation

Inventor： John Bultitude ,  Philip M. Lessner ,  Abhijit Gurav

IPC: H01G4/30 ,  H01G2/08 ,  H01G4/258 ,  H01G4/38 ,  H01G4/012 ,  H01G4/12

Abstract: An improved multilayered ceramic capacitor is provided wherein the capacitor has improved heat dissipation properties. The capacitor comprises first internal electrodes and second internal electrodes wherein the first internal electrodes are parallel with, and of opposite polarity, to the second internal electrodes. Dielectric layers are between the first internal electrodes and second internal electrodes and a thermal dissipation channel is in at least one dielectric layer. A thermal transfer medium is in the thermal dissipation channel.

公开(公告)号：US10002713B1

公开(公告)日：2018-06-19

申请号：US15876873

申请日：2018-01-22

Applicant: KEMET Electronics Corporation

Inventor： Randal J. Vaughan ,  Abhijit Gurav ,  Gregory L. Crosby ,  Buli Xu

IPC: H01G4/30 ,  H04R3/04 ,  H01G4/228 ,  H01G4/12

Abstract: An electronic component with a self-damping MLCC is provided. The electronic component comprising a pulse signal generator and a substrate comprising first traces and second traces. An MLCC is provided comprising a first capacitive couple between two first external terminations and a second capacitive couple between two second external terminations wherein each first external termination is in electrical contact with a different first trace and each second external termination is in electrical contact with a different second trace. The pulse signal generator provides a first pulse to the first traces and a second pulse to the second traces wherein the first pulse and second pulse are not in phase.

公开(公告)号：US12040135B2

公开(公告)日：2024-07-16

申请号：US18107154

申请日：2023-02-08

Applicant: KEMET Electronics Corporation

Inventor： John Bultitude ,  Nathan A. Reed ,  Allen Templeton ,  James R. Magee ,  James Davis ,  Abhijit Gurav ,  Hunter Hayes ,  Hanzheng Guo

IPC: H01G4/12 ,  C04B35/465 ,  C04B35/495 ,  C04B35/50 ,  H01G4/30 ,  H01G4/40

CPC classification number: H01G4/1245 ,  C04B35/465 ,  C04B35/495 ,  C04B35/50 ,  H01G4/1227 ,  H01G4/30 ,  H01G4/306 ,  H01G4/40 ,  C04B2235/66

Abstract: Provided is an improved multilayered ceramic capacitor and an electronic device comprising the multilayered ceramic capacitor. The multilayer ceramic capacitor comprises first conductive plates electrically connected to first external terminations and second conductive plates electrically connected to second external terminations. The first conductive plates and second conductive plates form a capacitive couple. A ceramic portion is between the first conductive plates and said second conductive plates wherein the ceramic portion comprises paraelectric ceramic dielectric. The multilayer ceramic capacitor has a rated DC voltage and a rated AC VPP wherein the rated AC VPP is higher than the rated DC voltage.

公开(公告)号：US20220238277A1

公开(公告)日：2022-07-28

申请号：US17586027

申请日：2022-01-27

Applicant: KEMET Electronics Corporation

Inventor： Hanzheng Guo ,  Abhijit Gurav

IPC: H01G4/12 ,  H01G4/30 ,  H01G4/008 ,  H01G4/012 ,  C04B35/468 ,  C04B35/64

Abstract: This invention relates to a multilayer ceramic capacitor produced by alternatively stacking the ceramic dielectric layers and internal electrodes mainly comprise base metals. The present dielectric ceramic composition having a main component with a perovskite structure ABO3 formula of: (KxNayLizA1-x-y-z)m(NbuTavBw)O3 wherein: A is at least one selected from the alkaline earth element group of Ca, Sr, and Ba; B is at least one selected from the group of Ti, Zr, Hf and Sn; and wherein: x, y, z, u, v, and w are molar fractions of respective elements, and m is the molar ratio of A-site and B-site elements. They are in the following respective range: 0.95≤m≤1.05; 0.05≤x≤0.90; 0.05≤y≤0.90; 0.00≤z≤0.12 0

公开(公告)号：US20190066927A1

公开(公告)日：2019-02-28

申请号：US16175186

申请日：2018-10-30

Applicant: KEMET Electronics Corporation

Inventor： John Bultitude ,  Philip M. Lessner ,  Abhijit Gurav

IPC: H01G4/258 ,  H01G4/12 ,  H01G4/012 ,  H01G4/30 ,  H01G4/38

Abstract: An improved multilayered ceramic capacitor is provided wherein the capacitor has improved heat dissipation properties. The capacitor comprises first internal electrodes and second internal electrodes wherein the first internal electrodes are parallel with, and of opposite polarity, to the second internal electrodes. Dielectric layers are between the first internal electrodes and second internal electrodes and a thermal dissipation channel is in at least one dielectric layer. A thermal transfer medium is in the thermal dissipation channel.

公开(公告)号：US09357634B2

公开(公告)日：2016-05-31

申请号：US13870414

申请日：2013-04-25

Applicant: KEMET Electronics Corporation

Inventor： John E. McConnell ,  Alan P. Webster ,  John Bultitude ,  Abhijit Gurav

IPC: H05K7/04 ,  H01L23/49 ,  H05K1/02 ,  H05K3/30 ,  H01G4/38 ,  H01C1/014 ,  H01C1/14 ,  H01C7/18 ,  H01G2/06 ,  H01G4/232 ,  H05K1/18

CPC classification number: H05K1/0271 ,  H01C1/014 ,  H01C1/14 ,  H01C7/18 ,  H01G2/06 ,  H01G4/232 ,  H01G4/38 ,  H05K1/181 ,  H05K1/182 ,  H05K3/30 ,  H05K3/301 ,  H05K2201/049 ,  H05K2201/10015 ,  H05K2201/10454 ,  Y10T29/49121

Abstract: An improved discrete electronic device and method of making the improved discrete electronic device is described. The discrete electronic device has an electronic passive component with a termination and a lead frame. A compensating compliant component is between the termination and the lead frame. The compensating compliant component has a composite core and a first conductor on the composite core. The first conductor is in electrical contact with the termination. A second conductor is also on the composite core wherein the second conductor is in electrical contact with the lead frame.

Abstract translation: 描述了一种改进的离散电子设备和制造改进的分立电子设备的方法。 分立的电子设备具有带终端和引线框架的电子无源部件。 补偿兼容部件在终端和引线框架之间。 补偿柔性部件具有复合芯和复合芯上的第一导体。 第一个导线与端子电接触。 第二导体也在复合芯上，其中第二导体与引线框架电接触。

公开(公告)号：US11935698B2

公开(公告)日：2024-03-19

申请号：US17586027

申请日：2022-01-27

Applicant: KEMET Electronics Corporation

Inventor： Hanzheng Guo ,  Abhijit Gurav

IPC: H01G4/12 ,  C04B35/468 ,  C04B35/64 ,  H01G4/008 ,  H01G4/012 ,  H01G4/30

CPC classification number: H01G4/1227 ,  C04B35/4682 ,  C04B35/64 ,  H01G4/008 ,  H01G4/012 ,  H01G4/30

Abstract: This invention relates to a multilayer ceramic capacitor produced by alternatively stacking the ceramic dielectric layers and internal electrodes mainly comprise base metals. The present dielectric ceramic composition having a main component with a perovskite structure ABO3 formula of:

(KxNayLizA1-x-y-z)m(NbuTav)O3

wherein:
A, B, x, y, z, u, v, w, m, u, v and w are defined further.


The dielectric ceramic composition further contains:

a first accessory ingredient composes at least one selected from the rare-earth compounds; a second accessory ingredient composes at least one selected from transition metal compounds; and a third accessory ingredient.

公开(公告)号：US11646156B2

公开(公告)日：2023-05-09

申请号：US17467995

申请日：2021-09-07

Applicant: KEMET Electronics Corporation

Inventor： Hanzheng Guo ,  Abhijit Gurav

IPC: H01G4/12 ,  C04B35/50 ,  H01G4/30 ,  C04B35/495 ,  C04B35/465 ,  H01G4/40

CPC classification number: H01G4/1245 ,  C04B35/465 ,  C04B35/495 ,  C04B35/50 ,  H01G4/1227 ,  H01G4/30 ,  H01G4/306 ,  H01G4/40 ,  C04B2235/66

Abstract: A dielectric ceramic composition comprising a main component comprising an oxide represented by:

UaXbYcZd((Ca1-x-ySrxMy)m(Zr1-u-vTiuHfv)O3)1-a-b-c-d

wherein the elements defined by U, X, Y, Z and M and subscripts a, b, c, d, x, y, m, u and v are defined.