SOLDER JOINT PART AND METHOD FOR MANUFACTURING THE SAME, AND JOINED BODY

To provide a solder joint part which enhances reliability of a joint part for joining members, a manufacturing method capable of simply manufacturing the solder joint part, and a joined body which has improved reliability.SOLUTION: A solder joint part 100 for joining a first member 151 and a second...

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Bibliographische Detailangaben
Hauptverfasser:	TOMIZUKA KENICHI, ICHIKAWA KOICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS PRINTED CIRCUITS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	To provide a solder joint part which enhances reliability of a joint part for joining members, a manufacturing method capable of simply manufacturing the solder joint part, and a joined body which has improved reliability.SOLUTION: A solder joint part 100 for joining a first member 151 and a second member 152 includes a first metal layer 110, and a second metal layer 120 provided on the surface of the first metal layer 110. The first metal layer 110 is a solder layer containing Sn, the second metal layer 120 is a solder layer containing Sn and Bi, and a liquidus temperature of the second metal layer 120 is a temperature lower than a solidus temperature of the first metal layer 110.SELECTED DRAWING: Figure 1 【課題】部材同士を接合する接合部の信頼性がより高められたはんだ接合部、そのはんだ接合部を簡便に製造可能な製造方法、及び信頼性の向上が図られた接合体を提供する。【解決手段】本発明は、第１部材１５１と第２部材１５２とを接合するはんだ接合部１００であって、第１金属層１１０と、第１金属層１１０の表面に設けられた第２金属層１２０とを備える。第１金属層１１０は、Ｓｎを含むはんだ層であり、第２金属層１２０は、ＳｎとＢｉとを含むはんだ層であり、第２金属層１２０の液相線温度が、第１金属層１１０の固相線温度に比べて低い温度であることを特徴とする。【選択図】図１