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Figure 6
Micrographs of Invar39/SnBiCu/silicon samples after thermal cycling by an optical microscope. The left side shows the sample with gold film and the right side that with copper film. |
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Figure 6
Micrographs of Invar39/SnBiCu/silicon samples after thermal cycling by an optical microscope. The left side shows the sample with gold film and the right side that with copper film. |