CERAMIC METAL CIRCUIT BOARD AND SEMICONDUCTOR DEVICE USING SAME

According to one embodiment, a ceramic metal circuit board is a ceramic metal circuit board formed by bonding metal circuit plates to at least one surface of a ceramic substrate. At least one of the metal circuit plates has an area of not less than 100 mm2 and includes a concave portion having a dep...

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Bibliographische Detailangaben
Hauptverfasser:	NABA, Takayuki, KATO, Hiromasa, YANO, Keiichi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	According to one embodiment, a ceramic metal circuit board is a ceramic metal circuit board formed by bonding metal circuit plates to at least one surface of a ceramic substrate. At least one of the metal circuit plates has an area of not less than 100 mm2 and includes a concave portion having a depth of not less than 0.02 mm within a range of 1% to 70% of a surface of the at least one of the metal circuit plates. The concave portion is provided not less than 3 mm inside from an end of the metal circuit plate. An area to provide the concave portion may fall within a range of 3% to 70% of one metal circuit plate surface.