Multilayer ceramic capacitor and method for manufacturing same

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United States of America Patent

PATENT NO 9959973
APP PUB NO 20160086733A1
SERIAL NO

14853088

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Abstract

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A multilayer ceramic capacitor that includes a layered body in which dielectric layers and internal electrode layers are layered alternately, an external electrode on a surface of the layered body and a plating layer on a surface of the external electrode. The external electrode contains Cu, and a protective layer containing Cu2O is provided at a joining portion between the external electrode and the plating layer. When heat is applied to the layered body after the external electrode is removed, a ratio of an arithmetic mean value Xa of a quantity of hydrogen generated per unit temperature in a range higher than or equal to 350° C. with respect to an arithmetic mean value Y of a quantity of hydrogen generated per unit temperature in a range higher than or equal to 230° C. and lower than or equal to 250° C. (Xa/Y) is less than or equal to 0.66.

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Patent Owner(s)

Patent OwnerAddress
MURATA MANUFACTURING CO LTD10-1 HIGASHIKOTARI 1-CHOME NAGAOKAKYO-SHI KYOTO-FU 617-8555

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishisaka, Yasuhiro Nagaokakyo, JP 59 538
Ogawa, Makoto Nagaokakyo, JP 156 1866
Saito, Yoshito Nagaokakyo, JP 31 199
Tsuru, Akihiro Nagaokakyo, JP 16 101

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