Taiyo Yuden Co., Ltd.

Kyosuke Shimazaki

Keisuke Ishii

Takayuki Hattori

Takashi Asai

Hirotaka Ohno

Shin Nishiura

Yoshimasa Kitamura

A ceramic electronic device includes a multilayer structure having a substantially rectangular parallelepiped shape, a first cover layer, and a second cover layer that is provided on a second end of the multilayer structure in the stacking direction, a main component of the second cover layer being ceramic, a porosity of the second cover layer being higher than that of the first cover layer. Q=(A+B)/2C×100(%) is 0.5% or more and 1.6% or less, when, at an interface of the second cover layer on a side of the first cover layer, two heights of curvature portions of both ends of the interface are respectively a height A and a height B, and a shortest height from the first cover layer to the second cover layer is a height C.

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Tokyo, Japan

Kyosuke Shimazaki