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Multilayer capacitor having open mode electrode configuration and flexible terminations

A technology of capacitors and electrodes, which is applied in the field of multilayer ceramic capacitors and can solve problems such as short circuits

Pending Publication Date: 2021-11-19
KYOCERA AVX COMPONENTS CORP (N D GES D STAATES DELAWARE)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This crack may intersect the electrodes near the edge of the capacitor, which may cause an unwanted electrical connection between the electrodes connected to the opposite terminal
Then, a short circuit occurs between the terminals of the capacitor

Method used

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  • Multilayer capacitor having open mode electrode configuration and flexible terminations
  • Multilayer capacitor having open mode electrode configuration and flexible terminations
  • Multilayer capacitor having open mode electrode configuration and flexible terminations

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Embodiment Construction

[0016] It should be understood by those of ordinary skill in the art that this discussion is a description of exemplary embodiments only, and is not intended to limit the broader aspects of the invention, which are embodied in exemplary configurations.

[0017] In general, the present invention relates to a multilayer ceramic capacitor employing a combination of features configured to reduce or prevent the risk of cracking. First, the external termination may include a conductive polymeric composition (eg, as a compliant layer) to reduce the stress experienced by the component. Conductive polymeric compositions may include a polymer and dispersed conductive particles. Second, multilayer ceramic capacitors can have large edge distances. Because cracks typically propagate near the terminations, a large edge distance reduces the chance of a crack intersecting the electrode in the event of an accident. Thus, the combination of a large edge distance and a compliant external termi...

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Abstract

A multilayer ceramic capacitor may include a monolithic body and interleaved first and second pluralities of electrodes extending from the first and second ends, respectively, of the monolithic body towards opposite ends of the monolithic body. A first margin distance and a second margin distance may be formed, respectively, between the electrodes and the opposite ends of the monolithic body. First and second external terminations may be respectively disposed along the first end and second end of the monolithic body and respectively connected with the first and second plurality of electrodes. A margin ratio between a length of the monolithic body and the first margin distance and / or second margin distance may be less than about 10. At least one of the first external termination or the second external termination may include a conductive polymeric composition.

Description

[0001] Related applications [0002] This application claims priority to US Provisional Application Serial No. 62 / 838,406, filed April 25, 2019, which is hereby incorporated by reference in its entirety. technical field [0003] This topic deals with multilayer ceramic capacitors in general. More specifically, the subject matter relates to multilayer capacitors with open-mode electrode configurations and flexible terminations. Background technique [0004] Many modern electronic components are packaged as monolithic devices and may include a single component or multiple components within a single chip package. A specific example of such a monolithic device is a multilayer capacitor or capacitor array, and of particular interest to the disclosed technology are multilayer capacitors with intersecting internal electrode layers and corresponding electrode tabs. [0005] Multilayer capacitors are formed by providing individual sheets of ceramic dielectric cut from previously p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/232H01G4/30H01G4/012H01G4/12
CPCH01G4/012H01G4/30H01G4/232H01G4/2325H01G4/12H01G4/248
Inventor 弗兰克·豪金森伊莲·宝雅
Owner KYOCERA AVX COMPONENTS CORP (N D GES D STAATES DELAWARE)