发明名称 |
Method of sorting monolithic ceramic capacitors by measuring the insulation resistance thereof |
摘要 |
A sorting method of monolithic ceramic capacitors in which high reliable sorting can be efficiently achieved based on measuring an insulating resistance involves first performing a burn-in process, which applies not less than double of the rated voltage at the maximum working temperature to a monolithic ceramic capacitor. Thereafter, a high temperature insulation resistance measuring process, which involves measuring an insulation resistance while applying not less than the rated voltage at a temperature of not less than 70° C. to the monolithic ceramic capacitor, is performed so that monolithic ceramic capacitors having abnormal insulation resistances are eliminated. Preferably, the direction of applied voltage in the burn-in process agrees with the direction of applied voltage in the high temperature insulation resistance measuring process.
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申请公布号 |
US6476617(B1) |
申请公布日期 |
2002.11.05 |
申请号 |
US19990425079 |
申请日期 |
1999.10.21 |
申请人 |
MURATA MANUFACTURING CO. LTD. |
发明人 |
KAWAGUCHI YOSHIO;TAKAGI YOSHIKAZU;YONEDA YASUNOBU |
分类号 |
H01G13/00;G01R31/00;G01R31/02;(IPC1-7):G01R31/12;G01N27/00;H01G4/06;H01H31/12 |
主分类号 |
H01G13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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