Oslo Ceramic Capacitor Inspection Standards

What are the visual standards for chip capacitors?

After describing high reliability testing in our previous article, let’s discuss visual standards for chip capacitors. Multilayer ceramic capacitors (MLCCs) must possess fine workmanship and physical integrity, so visual inspection of the product is performed at 20X magnification to check for defects in the capacitor body and end metallization.

What are the quality standards for chip capacitors?

In addition to the external visual characteristics, quality standards for internal microstructure of the chip capacitor are also applicable, as viewed on polished cross sections of capacitor samples. Units are sectioned along the long and short dimension of the capacitor to provide two edge views of the internal electrodes and terminals.

What are Knowles capacitors?

Knowles Capacitors explains the ins and outs of chips capacitors – their properties, product classifications, test standards, and use cases. In the next article, manufacturers’ MLCC chip visual standards are explained. External Visual Standards

Do irregularities in the construction of a chip capacitor affect electrical integrity?

Irregularities in the construction of the chip capacitor do not necessarily affect the mechanical or electrical integrity of the device, but may be of concern in high reliability applications. The following is a compilation of structural irregularities according to the EIA 469: Figure 2. Microstructure defects

What is the capacitor Fundamentals series?

The Capacitor Fundamentals Series teaches the ins & outs of chips capacitors – their properties, product classifications, test standards, & use cases.

What is a delamination in a capacitor?

A delamination is a separation of the structural layers of the capacitor, in the form of a planar cavity, between the electrode and ceramic or within the dielectric itself.