JPH0634448B

To make a composite article comprising a copper element (12) and an adhesive material (6) adhesively bonded to a surface thereof, the surface of the copper element is provided with a microstructure comprising knife-shaped elongate projections (14) whose opposite flanks are at an average angle of les...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SUZUKI YOSHIHIRO, FURUKAWA KYONORI, TAKAHASHI AKIO, NAGAI AKIRA, AKABOSHI HARUO, MURAKAMI KANJI
Format:	Patent
Sprache:	eng
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:	To make a composite article comprising a copper element (12) and an adhesive material (6) adhesively bonded to a surface thereof, the surface of the copper element is provided with a microstructure comprising knife-shaped elongate projections (14) whose opposite flanks are at an average angle of less than 60 DEG to each other. The microstructure may include rod-shaped projections much smaller than said knife-shaped projections projecting outwardly from the surface of said knife-shaped projections. The knife-shaped projections may be formed by electroless plating and the rod-shaped projections by oxidation and optionally reduction. Bonding strength is improved.