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1. (WO2015045625) LAMINATED CERAMIC ELECTRONIC COMPONENT

Pub. No.:    WO/2015/045625    International Application No.:    PCT/JP2014/070511
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Tue Aug 05 01:59:59 CEST 2014
IPC: H01G 4/232
H01G 4/30
Applicants: MURATA MANUFACTURING CO.,LTD.
株式会社村田製作所
Inventors: OMORI, Takashi
大森貴史
KOGA, Seiji
古賀誠史
IKEDA, Jun
池田潤
Title: LAMINATED CERAMIC ELECTRONIC COMPONENT
Abstract:
 Provided is a highly reliable laminated ceramic electronic component having low residual stress caused by an external electrode, and exceptional mechanical strength. The external electrode contains a metal serving sa a conductive component, and an inorganic component other than the conductive component, and based on results obtained by observing a SIM image of a tip region of a wraparound portion of the external electrode, which is wrapped around the side face of a ceramic element, the area ratio of the conductive component and the inorganic compound is 25-75%. The area ratio is determined by the following formula: area ratio of the conductive component and the inorganic component = {(area of conductive component + area of inorganic component)/(area of conductive component + area of inorganic component + area of space)} × 100. The thickness of the wraparound portion of the external electrode wrapped around the side face of the ceramic element is 5-10 µm.