Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 9, 2008
Patent Application Number
11512304
Date Filed
August 30, 2006
Patent Primary Examiner
Patent abstract
A lead-free solder includes at least one selected from 0.01 to 1% by weight of Co, 0.01 to 0.2% by weight of Fe, 0.01 to 0.2% by weight of Mn, 0.01 to 0.2% by weight of Cr, and 0.01 to 2% by weight of Pd; 0.5 to 2% by weight of Cu; and 90.5% by weight or more of Sn. This solder exhibits a satisfactory solderability in solder joints and shows a high resistance to electrode leaching upon soldering or when the resulting soldered article is left at high temperatures.
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