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NOVEMBER 2019 I PCB007 MAGAZINE 75 Figure 21: ANOVA, comparison of the CBP pull strength for the nickel types. Figure 22: A comparison of the CBP pull strength for the gold types. Figure 23: Physical conditions for the ball shear test. Table 2: Failure classification for the ball shear test. is approximately 750 g. It is demonstrated in Figure 22 that all the results conform to expec- tation. More importantly, for benchmarking purpos- es, the results are similar. The instant visual message relating to Figure 23 is the dominance fracture mode type 2, shown in blue. The in- ference is that the SJR has a high degree of ductility. The fracture modes in Figure 25 indicate that the CNF Au performed worse than both of the cyanide-containing gold baths. However, due to the difference in population size, the resolu- tion became too poor to show the distinctions. The actual variations in the results are repre- sented in Table 3. The results are visible on the top line of the row that represents each gold bath. The total population count is also shown in the table. Table 3: The fracture mode data for the gold baths.