Research Article
Effects of Zinc Oxide Nanoparticles on Properties of SAC0307 Lead-Free Solder Paste
Figure 5
The slumping of the SAC0307-xZnO solders on the copper substrate: (a) SAC0307, (b) SAC0307-0.25ZnO, (c) SAC0307-0.50ZnO, (d) SAC0307-0.75ZnO, and (e) SAC0307-1.0ZnO.
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