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Failure Determination of Single Layer Capacitor
2021/06/24 03:06:35

With the continuous development of chip capacitor technology, single layer capacitor (SLC) has become one of the most commonly used chip capacitors in electronic circuits. The appearance of single layer capacitor looks very simple, but as the chip capacitor, its internal structure is ceramic body, so the deformation caused by the external force can make it crack. So, how do we determine the failure cause of single layer capacitor?

Among them, the fracture or microcrack of ceramic body of chip capacitor is one of the most common phenomena leading to product failure. The characteristics of fracture phenomenon are obvious. However, microcrack generally appear in the interior and which is not easy to be observed, which involves the processing technology of single layer capacitor, operating instruments in the using process, thermal stress and other factors.

In the case of qualified single layer capacitor, its appearance dimension should be the same as that indicated in the instruction manual and on the outer packaging. In addition, the chip capacitor can not be put into use if there is a slight appearance such as a slight flaw or a slight crack.

Next, it is to detect the appearance color of the single layer capacitor. The normal appearance color of the chip capacitor is uniform, and the same batch will not appear black and gray and other color aberrations. If the color is different observed by the visual inspection, it indicates that the chip capacitor has quality problems. At this point, the next test should be carried out. If the test is not qualified, the chip capacitor can not be put into use.

Single layer capacitor produced by EXSENSE Electronics Technology Co., Ltd. are mainly used in microwave integrated circuits, which is mainly used in DC insulation, source bypass and impedance matching, and its application frequency can reach several GHz.

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