Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich irreversible degradation effect occurs when an LED driver's output voltage significantly exceeds the LED's rated forward voltage?
A)Electrostatic discharge damage (ESD)
B)Electromigration induced bond failure✓
C)Thermal runaway in the control IC
D)Reverse bias excessive avalanche current
💡 Explanation
Electromigration rapidly degrades the metallic interconnects within the LED package because high current density (driven by excessive voltage) transports metal atoms, causing bond wires to thin and fail; therefore, electromigration is the correct failure mode, rather than ESD or generic thermal effects.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Technology →- Which degradation results when elevated laser temperatures impair DWDM?
- Which risk increases when an antenna array's excitation phases deviate from calibration?
- Which risk increases when a three-phase induction motor feeder breaker is sized significantly oversized?
- Within a municipal power grid, which outcome occurs when significant harmonic distortion arises?
- Which outcome is most probable when a robotic arm's inverse kinematics computation intensely relies upon extrapolation?
- Which outcome is most probable when a three-phase power transformer system experiences sustained unbalanced loading?
