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← ScienceWhich consequence results when thermal cycling degrades adhesive bonds in surface-mount electronics?
A)Increased electromigration within solder joints
B)Decreased ohmic resistance across components
C)Elevated parasitic capacitance between traces
D)Propagation of interfacial delamination cracking✓
💡 Explanation
Interfacial delamination cracking occurs because repeated thermal expansion mismatches cause fatigue and weakening via cohesive zone debonding. Therefore, crack propagation accelerates, rather than inducing electrical effects; alternative responses would result from different mechanisms.
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