CREAMY SOLDER

PURPOSE:To increase the peeling strength of a soldering part by mixing the metal ball in the specified diameter having higher melting point than that of a solder and that the surface can be wetted to the melting solder in the specified quantity on the creamy solder. CONSTITUTION:The metallic ball in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HASEGAWA NAGAYOSHI, KATO RIKIYA
Format:	Patent
Sprache:	eng
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MACHINE TOOLS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PRINTED CIRCUITS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE:To increase the peeling strength of a soldering part by mixing the metal ball in the specified diameter having higher melting point than that of a solder and that the surface can be wetted to the melting solder in the specified quantity on the creamy solder. CONSTITUTION:The metallic ball in 0.07-0.3mm diameter that has higher melting point than that of a solder and that the surface can be wetted to a melting solder is mixed in 0.5-5wt% into the creamy solder. In this way the reliable soldering which can keep the clearance optimally is obtd. The flux fume generated at heating time and residual air become to be exhausted to the external part of the soldering part by creeping among the metallic balls and there remains no void there.