Method of manufacturing a multilayer ceramic electronic component having protrusions at one ends of internal electrodes
A method of manufacturing a multilayer ceramic electronic component includes a ceramic body having a capacitance forming portion in which first and second internal electrodes are alternately laminated with respective dielectric layers interposed therebetween, and first and second external electrodes respectively disposed on surfaces of the ceramic body. The first and second internal electrodes are respectively exposed to surfaces of the ceramic body, and first and second protrusions, each including a carbon compound, are respectively disposed on end portions of the first and second internal electrodes exposed to the surfaces of the ceramic body.
1 . A method of manufacturing a multilayer ceramic electronic component, the method comprising:
laminating a plurality of ceramic green sheets with first and second internal electrode layers alternately arranged in a third direction with dielectric layers interposed therebetween to form a ceramic body;
forming and exposing both ends of the first and second internal electrodes after laminating;
sintering the ceramic body; and
wherein forming protrusions in end portions of the first and second internal electrodes of the ceramic body by performing a grain growth of carbon treatment.
2 . The method of claim 1 , wherein the performing the grain growth of carbon is within a temperature range of 700° C. to 1300° C.
3 . The method of claim 1 , wherein the grain growth of carbon is performed under an atmosphere of hydrocarbon compound and hydrogen having 1 to 16 carbon atoms.
4 . The method of claim 1 , wherein the grain growth of carbon is performed under an argon atmosphere.
5 . The method of claim 1 , wherein the performing the grain growth of carbon includes performing grain growth of carbon atoms into three layers or more.
6 . The method of claim 1 , further comprising:
decreasing a temperature at a rate of less than 20° C./min after performing the grain growth of carbon.
7 . The method of claim 1 , wherein the performing the grain growth of carbon is in the end portions of the first and second internal electrodes exposed on respective opposing surfaces of the ceramic body.
8 . The method of claim 7 , further comprising:
following the performing the grain growth of the carbon in the end portions of the first and second internal electrodes of the ceramic body, forming first and second external electrodes on the respective opposing surfaces of the ceramic body to respectively connect to the first and second internal electrodes to form the multilayer ceramic electronic component.