Multilayer capacitor

A technology of laminated capacitors and terminal electrodes, which is applied in the direction of laminated capacitors, fixed capacitor electrodes, and fixed capacitor dielectrics, can solve the problem of not increasing the equivalent series resistance of laminated capacitors, and achieve the goal of increasing the equivalent series resistance Effect

Active Publication Date: 2006-10-04
TDK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the multilayer capacitor described in Patent Document 1 has not been studied to increase the equivalent series resistance.

Method used

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no. 1 Embodiment approach

[0053] refer to figure 1 as well as figure 2 The configuration of the multilayer capacitor C1 according to the first embodiment will be described. figure 1 It is a perspective view of the multilayer capacitor according to the first embodiment. figure 2 It is an exploded perspective view of a laminate included in the multilayer capacitor according to the first embodiment.

[0054] Multilayer capacitor C1, as figure 1 As shown, a laminated body 1 , first and second terminal electrodes 3 and 5 formed on the laminated body 1 , and first and second connection conductors 7 and 9 are included.

[0055] The first terminal electrode 3 is formed on the side surface 1 a extending in the longitudinal direction among the side surfaces parallel to the lamination direction described later of the laminated body 1 . The second terminal electrode 5 is formed on the side surface 1b extending in the longitudinal direction and facing the side surface 1a on which the first terminal electrode ...

no. 2 Embodiment approach

[0075] refer to Figure 5 The structure of the multilayer capacitor according to the second embodiment will be described. The multilayer capacitor according to the second embodiment differs from the multilayer capacitor C1 according to the first embodiment in that the first internal electrode 33 connected to the first terminal electrode 3 via the lead-out conductor 37 and the first internal electrode 33 connected to the first terminal electrode 3 via the lead-out conductor 47 are different from the multilayer capacitor C1 according to the first embodiment. The position of the second internal electrode 42 connected to the second terminal electrode 5 in the stacking direction. Figure 5 It is an exploded perspective view of a laminate included in the multilayer capacitor according to the second embodiment.

[0076] The multilayer capacitor according to the second embodiment is omitted from illustration, but it includes a laminated body 1 and a first terminal electrode formed on...

no. 3 Embodiment approach

[0086] refer to Figure 6 The structure of the multilayer capacitor according to the third embodiment will be described. The multilayer capacitor according to the third embodiment differs from the multilayer capacitor C1 according to the first embodiment in that the first and second inner electrodes 31 and 34 are connected to the terminal electrodes 3 and 5 via lead-out conductors 37 and 47 . , 41, 44 numbers. Figure 6 It is an exploded perspective view of a laminate included in the multilayer capacitor according to the third embodiment.

[0087] The multilayer capacitor according to the third embodiment is omitted from illustration, but it includes a laminated body 1 and a first terminal electrode 3 formed on the multilayered body 1 similarly to the multilayered capacitor C1 according to the first embodiment. , the second terminal electrode 5 formed on the same laminated body 1 , and the first and second connection conductors 7 and 9 .

[0088] In the multilayer capacitor...

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Abstract

A multilayer capacitor comprises a multilayer body in which a plurality of dielectric layers and a plurality of first and second inner electrodes are alternately laminated, and first and second terminal electrodes formed on the multilayer body. The plurality of first and second inner electrodes are electrically connected to each other through a connecting conductor. A part of the plurality of first inner electrodes and a part of the plurality of second inner electrodes are electrically connected to the first and second terminal electrodes through lead conductors, respectively. Each first inner electrode connected to the respective first terminal electrode through the lead conductor and each second inner electrode connected to the respective terminal electrode through the lead conductor are arranged at positions symmetrical to each other about the center position in the laminating direction of the multilayer body. Alternatively, one or a plurality of first inner electrodes connected to the first terminal electrode through the lead conductor and one or a plurality of second inner electrodes connected to the second terminal electrode through the lead conductor are arranged at respective positions symmetrical to each other about the center position in the laminating direction of the multilayer body.

Description

technical field [0001] This invention relates to stacked capacitors. Background technique [0002] As such a multilayer capacitor, there is known a multilayer capacitor including a multilayer body in which a plurality of dielectric layers and a plurality of internal electrodes are alternately stacked, and a plurality of terminal electrodes formed on the multilayer body (such as , refer to Patent Document 1). [0003] In a supply power supply for supplying power to a central processing unit (CPU) mounted on a digital electronic device, the load current increases as the voltage becomes lower. Therefore, it is difficult to control the variation of the power supply voltage within the allowable value for the sudden change of the load current, so a multilayer capacitor called a decoupling capacitor is gradually connected to the power supply. Therefore, when the load current fluctuates excessively, the multilayer capacitor supplies current to the CPU, thereby suppressing fluctuat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/30H01G4/005H01G4/228H01G4/12
CPCH01G4/30H01G4/232H01G4/33H01G4/255
Inventor 富樫正明
Owner TDK CORP
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