Method of manufacturing monolithic ceramic electronic part and monolithic ceramic electronic part
AssigneeMurata Manufacturing Co., Ltd.
InventorHiroyuki Matsumoto
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Abstract
In manufacturing a monolithic ceramic electronic part, an oxide of a conductive metal component contained in internal electrodes is mixed with a ceramic green sheet used for forming a ceramic layer by burning. Therefore, even if the conductive metal component diffuses and dissolves from the internal electrodes, the occurrence of non-uniformity in the concentration of the oxide of the conductive metal component is suppressed over the entire region of a laminate, and thus the entire laminate can be sufficiently uniformly sintered.
Claims12
A method of manufacturing a monolithic ceramic electronic part comprising a laminate comprising a plurality of laminated ceramic layers and a plurality of internal conductor films respectively extending along the interfaces between the ceramic layers positioned in an intermediate portion in the lamination direction, the method comprising:
- providing a plurality of ceramic green sheets each comprising a ceramic powder and used for forming a ceramic layer by burning having an internal conductor film comprising a conductive metal component thereon and a plurality of ceramic green sheets without an internal conductor film the thereon;
- laminating a plurality of ceramic green sheets on which internal conductor films are respectively formed, and laminating ceramic green sheets without the internal conductor films as external laminate layers in the lamination direction, to form a green laminate;
- and
- burning the green laminate;
- wherein each of the ceramic green sheets used as the external layers comprise an oxide of the conductive metal component contained in the internal conductor films, and
- wherein the oxide of the conductive metal component is present prior to burning only in the ceramic green sheets used as the external layers.
Dependencies are inferred from the claim text.