Dowa Mining Co., Ltd.

Dowa Metaltech Co., Ltd.

Jyunji Nakamura

Masami Kimura

Makoto Namioka

Nobuyoshi Tsukaguchi

Masahiko Wada

There is provided a metal/ceramic bonding article which ensures sufficient thermal shock resistance and has a substrate having a small outside dimension and which has both high reliability and compactness. The metal/ceramic bonding article comprises: a ceramic substrate; and a metal plate bonded to the ceramic substrate via a brazing filler metal, wherein the brazing filler metal protrudes from the bottom face of the metal plate by a length which is longer than 30 &mgr;m and which is 250 &mgr;m or less, or wherein the brazing filler metal protrudes from the bottom face of the metal plate by a length which is 25% or more of the thickness of the metal plate.

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Shiojiri, Japan

Jyunji Nakamura