Conductive resin composition, multilayer ceramic capacitor having the same, and method of manufacturing the multilayer ceramic capacitor

A multilayer ceramic capacitor, comprising:

• a ceramic body having a plurality of laminated dielectric layers therein;
• a plurality of first and second internal electrodes formed on at least one surfaces of the dielectric layers, and alternately exposed to both end surfaces of the ceramic body;
• first and second external electrodes formed on both end surfaces of the ceramic body, respectively, and electrically connected to the first and second internal electrodes, respectively;
• first and second conductive resin layers formed on surfaces of the first and second external electrodes, respectively, the first and second conductive resin layers being formed of a conductive resin composition including 10 to 50 wt % of a gel type silicon rubber such as polydimethylsiloxane (PDMS) and 50 to 90 wt % of conductive metal powder particles;
• and
• first and second plating layers formed on surfaces of the first and second conductive resin layers, respectively.

A method of manufacturing a multilayer ceramic capacitor, the method comprising:

• preparing a plurality of ceramic sheets;
• forming first and second internal electrodes on at least one surfaces of the ceramic sheets, respectively;
• laminating the plurality of ceramic sheets having the first and second internal electrodes formed thereon to form a laminate;
• cutting the laminate such that one ends of the first and second internal electrodes are alternately exposed to both end surfaces of the laminate, respectively;
• firing the cut laminate to form a ceramic body having the plurality of first and second internal electrodes;
• forming first and second external electrodes of a conductive paste on both end surfaces of the ceramic body to thereby allow the first and second external electrodes to be electrically connected to exposed portions of the first and second internal electrodes, respectively;
• forming first and second conductive resin layers of a conductive resin paste on surfaces of the first and second external electrodes, the conductive resin paste including 10 to 50 wt % of a gel type silicon rubber such as polydimethylsiloxane (PDMS) and 50 to 90 wt % of conductive metal powder particles;
• and
• plating surfaces of the first and second conductive resin layers.