| 摘要 |
<p>PROBLEM TO BE SOLVED: To detect nonconformities in the bond of a metal terminal to a laminate ceramic capacitor by applying a d-c bias to the metal terminal, changing the frequency, and comparing the impedance characteristics. SOLUTION: A multilayer ceramic capacitor with metal terminals is made by arranging in parallel a plurality of multilayer ceramic capacitors and bonding outer electrodes of the capacitors to the metallic terminals with solder, etc., thereby obtaining the electric conduction. A d-c bias is applied to the metallic terminals of the large-capacity multilayer ceramic capacitor having the metallic terminals and the frequency is changed to obtain impedance characteristics, which are then compared to detect the nonconformity of the bond of the metallic terminal to the capacitor. Nonconformities such as cracks, etc., of the ceramic capacitor can also be detected. Then these products having high reliability can be selected and corrected, by feeding back the nonconformities to the previous step.</p> |
