本研究發現在Sn-3 Ag-1 Zn無鉛銲錫中有兩種不同的析出物。顆粒尺寸較大的析出物，大小約為數個微米。其成份相當接近Ag3Sn。而顆粒尺寸較小的析出物，大小約為100 nm左右。經由TEM/EDX鑑定的結果，部分為Ag3Sn，而部分的析出物則含有大量的鋅。然而，在含有大量鋅的析出物中，其銀和鋅的比例接近1，而錫的含量則不同。因此推測應該是銀鋅化合物(AgZn)，而錫(Sn)則來自於基地。為驗證推測，依鑑定出來的錫、銀、鋅比例熔融合金，而此合金的X-Ray diffraction pattern結果證實了推測是正確的。 另外，氯化鋅酒精溶液及氯化亞錫酒精溶液則作為新的助熔劑(Flux)。這兩種助熔劑都能加強銲錫的潤濕能力，且都能在銲錫和基板間形成良好的鍵結。而且試片強度都遠高於利用之前的助焊劑所焊接的試片。而觀察斷面均為密佈的窩穴(Dimples)，代表其均為延性破裂。另外，觀察拉伸至不同階段的剝離測試試片則發現破裂皆發生在銲錫中間。

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