Multilayer ceramic capacitor and mounting board having multilayer ceramic capacitor mounted thereon

A mounting board having a multilayer ceramic capacitor mounted thereon, the mounting board comprising:

• a printed circuit board having first and second electrode pads formed thereon;
• and
• a multilayer ceramic capacitor mounted on the printed circuit board,
• wherein the multilayer ceramic capacitor includes:
• a ceramic body having a plurality of dielectric layers laminated therein, the dielectric layers respectively having an average thickness of 0.2 to 2.0 μm;
• an active layer including a plurality of first and second internal electrodes alternately exposed through both end surfaces of the ceramic body having the dielectric layer interposed therebetween and contributing to capacitance formation;
• an upper cover layer formed above the active layer;
• a lower cover layer formed below the active layer, the lower cover layer being thicker than the upper cover layer;
• and
• first and second external electrodes covering both end surfaces of the ceramic body while being connected to the first and second electrode pads through soldering, and
• wherein a bottommost internal electrode adjacent to the lower cover layer has an oxide layer formed on at least top and bottom surfaces thereof, and
• when a length and a thickness of the bottommost internal electrode are denoted by Le and te, respectively, and a length and a thickness of the oxide layer are denoted by Lo and to, respectively, in a cross section of the ceramic body taken in length and thickness directions, 50%<Lo/Le×100 and 30%<to/te×100<80% are satisfied.