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Laminated ceramic electronic part

一种陶瓷电子元件、陶瓷的技术，应用在叠层电容器、固定电容的零部件、固定电容器电极等方向，达到防止短路不良、防止短路的效果

Active Publication Date: 2010-10-20
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, the above-mentioned cracks C1 and C2 also occur at the same time
At this point, a short circuit will still occur

Method used

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  • Laminated ceramic electronic part
  • Laminated ceramic electronic part
  • Laminated ceramic electronic part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Hereinafter, the present invention will be clarified by describing specific embodiments of the present invention with reference to the accompanying drawings.

[0042] figure 1 It is a perspective view showing the appearance of a multilayer ceramic capacitor as a multilayer ceramic electronic component according to the first embodiment of the present invention, figure 2 is to mean along figure 1 Sectional view of line II-II. Multilayer ceramic capacitor 1 has ceramic component 2 . The ceramic component 2 is composed of a ceramic sintered body fired by a ceramic integral sintering method together with first and second internal electrodes described later.

[0043] The above-mentioned ceramic component 2 has a rectangular parallelepiped shape. The ceramic component 2 has: first and second end surfaces 2a and 2b opposite to each other, and first and second main surfaces 2c and 2d opposite to each other. In addition, the ceramic component 2 also has figure 1 The sho...

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PUM

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Abstract

Provided is a laminated ceramic electronic part, in which a short-circuit failure is hardly caused by a thermal stress due to an external temperature change or by a crack due to a deflection stress from the outside. In the laminated ceramic electronic part (1), a first internal electrode (3) is extracted to a first end face (2a) of a ceramic element assembly (2). A plurality of second internal electrodes (4) are extracted to a second end face (2b). A float type internal electrode (7) is arranged to overlap first and second internal electrodes (3 and 4) through a ceramic layer, thereby to form first and second effective regions (8 and 9). A first internal conductor (10) is extended from the first end face (2a) over the region, in which it overlaps the first effective region (8) in the laminating direction. Relations of X1 < Y1 < (L - E) hold, when the size joining the first and second end faces (2a and 2b) in the longitudinal direction is designated by L, the longitudinal size of the first internal electrode (3) by X1, the distance between the first end face (2a) and the end portion of the first internal conductor (10) by Y1, and the distance from the second end face (2b) to the end portion of a second roundabout portion (6b) by E.

Description

technical field [0001] The present invention relates to a multilayer ceramic electronic component such as a multilayer ceramic capacitor or a multilayer ceramic thermistor, and more particularly to a multilayer ceramic electronic component in which a floating internal electrode is provided in a ceramic package and a plurality of effective areas for extracting capacitance are formed. Background technique [0002] Vehicles are equipped with various systems such as engines, air conditioners, and air bag systems. In addition, a plurality of control devices called ECUs (Electrical Control Units) are mounted to individually control these systems. Various electronic components are installed in the ECU. In recent years, the number of ECUs mounted on one vehicle has gradually increased along with the increase of the above-mentioned systems. Along with this, miniaturization of ECUs and electronic components mounted on ECUs has been strongly demanded. Therefore, multilayer ceramic e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/12H01G4/30
CPCH01G4/12H01G4/012H01G4/30
Inventor 清水直树
Owner MURATA MFG CO LTD
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