Kyocera Corporation

Kazuki Nishimoto

Kouichirou Sugai

Youji Furukubo

Sentarou Yamamoto

Yuhei Matsumoto

Kazuhiro Okamoto

An electronic component mounting substrate includes: a metal base including a first surface and a recessed portion having a frame-like shape, the recessed portion opening to the first surface and including a bottom surface, an inner side surface, and an outer side surface; and an insulation base plate bonded via a bonding material to a position surrounded by the recessed portion on the first surface. A protective layer is provided on the inner side surface of the recessed portion, and on the bottom surface, the protective layer extending from the inner side surface to the outer side surface is not provided.

Electronic component mounting base and electronic device

An electronic component mounting substrate includes: a metal substrate including a first surface, an insulation substrate including a second surface on which a first metal layer having a frame shape is provided, and a bonding material that bonds the first surface and the first metal layer. The bonding material is located in a region that includes the first metal layer and that is surrounded by the first metal layer in a plane perspective.

Electronic component mounting substrate and electronic device

A joint body of the present disclosure includes a substrate including a base member having insulating properties and a metal layer positioned on a first main surface of the base member, a metal joint layer, and a metal member. The metal joint layer is positioned between the metal layer and the metal member of the substrate. The metal joint layer includes a nickel layer, a solder layer, and a composite layer containing a mix of nickel and solder. The nickel layer, the composite layer, and the solder layer are positioned in this order from the metal layer side to the metal member side. The nickel in the composite layer extends from the nickel layer in the thickness direction and forms protrusions and recesses.

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Kyoto, Japan

Kazuki Nishimoto