Question: Figure 18-15 shows a cross-section through an epoxy-encapsulated integrated circuit, including a micro gap between the copper lead frame and the epoxy polymer. Suppose chloride

Figure 18-15 shows a cross-section through an epoxy-encapsulated integrated circuit, including a micro gap between the copper lead frame and the epoxy polymer. Suppose chloride ions from the manufacturing process penetrate the package. What types of corrosion cells might develop? What portions of the integrated circuit are most likely to corrode?

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