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← ScienceWhich outcome occurs when an electrostatic discharge (ESD) strikes an ungrounded microchip capacitor pad?
A)Dielectric breakdown from high voltage✓
B)Electromigration due to excessive current
C)Substrate heating softens solder joints
D)Galvanic corrosion weakens metal traces
💡 Explanation
When an ESD strikes, a rapid voltage surge occurs across the capacitor, and the dielectric material can fail if the voltage exceeds its breakdown strength because the electric field exceeds the dielectric strength. Therefore dielectric breakdown results, rather than electromigration, heating, or material corrosion, which require different mechanisms and conditions.
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