Materials interaction during soldering and isothermal ageing of Sn-Pb and Sn-Ag-Cu solders on electroless Ni/Au surface finish
In flip chip interconnection an under bump metallurgy (UBM) is required to provide a diffusion barrier, an adhesion and a solderable surface. Among the various UBM systems available the electroless nickel / immersion gold (ENIG) has received greater attention in recent years due to its low cost and...
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| Format: | Thesis |
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2003-05.
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| Online Access: | Get fulltext |