Title:
積層セラミックコンデンサの良否判定方法
Document Type and Number:
Japanese Patent JP7127369
Kind Code:
B2
Abstract:
To determine a good item and a defective item of multilayer ceramic capacitor accurately, by measuring insulation resistance accurately.SOLUTION: A quality determination method of multilayer ceramic capacitor includes: a step (step S1) of preparing a multilayer ceramic capacitor having an element composed of dielectric ceramic, multiple internal electrodes embedded in the element in such a manner as being pulled out alternately to the first and second end faces of the element, and a pair of external electrodes provided on the first and second end faces of the element, and connected with the internal electrodes; a step (step S2) of applying a prescribed voltage to the pair of external electrodes, for a recharge time T determined based on a dielectric constant ε of the multilayer ceramic capacitor; a step (step S3) of measuring the insulation resistance after application of the prescribed voltage; and a step (step S4) of determining the quality of the multilayer ceramic capacitor, on the basis of the measured insulation resistance.SELECTED DRAWING: Figure 5
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Inventors:
Katsuhiko Hara
Application Number:
JP2018109729A
Publication Date:
August 30, 2022
Filing Date:
June 07, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01G13/00; G01R27/02
Domestic Patent References:
| JP2000124088A | ||||
| JP2002296313A | ||||
| JP11083926A | ||||
| JP2003217990A | ||||
| JP2016062781A | ||||
| JP2009295606A | ||||
| JP2001284197A |
Foreign References:
| US20120153966 |
Attorney, Agent or Firm:
Nishizawa Hitoshi
Takahiro Nosue
Takahiro Nosue