Multilayer ceramic electronic component and method of manufacturing the same

摘要

There are provided a multilayer ceramic electronic component and a method of manufacturing the same. Here, an average diameter (Dc) of ceramic grains in a cover area is smaller than an average diameter (Da) of ceramic grains in the active area, and when a thickness of the cover area is expressed by Tc, 9 um≦Tc≦25 um and Tc/Dc≧55 are satisfied. A multilayer ceramic capacitor having excellent moisture-resistance properties may be obtained.

主权项

1. A multilayer ceramic electronic component, comprising:
a ceramic body; external electrodes formed on outer surfaces of the ceramic body; and internal electrodes laminated with ceramic layers each interposed therebetween in the ceramic body, wherein the ceramic layers comprise first ceramic grains having a first average diameter (Da) and the first ceramic grains are in direct physical contact with facing sides of adjacent internal electrodes, the ceramic body includes an active area from an uppermost internal electrode to a lowermost internal electrode and a cover area formed above or below the active area, the cover area comprises second ceramic grains having a second average diameter (Dc), the average diameter (Dc) of the second ceramic grains in the cover area formed above or below the active area is smaller than the average diameter (Da) of the first ceramic grains in the active area, and when a thickness of he cover area is expressed by Tc, 9 um≦Tc≦25 um and Tc/Dc≧55 are satisfied.