Your solution map
Voltage drop and progressive resistance degradation in high-current microbumps or copper pillars
Check BLNKK's understanding of the problem, then review priority paths, candidate solutions and missing conditions.
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Your solution map
Check the problem definition, then choose which solutions to explore.
2 priority paths6 candidate solutions6 sources
BLNKK's current understanding
Please check the details- Interconnect architecture
- 3DIC / 2.5D microbumps or Cu pillars; geometry, materials, and power network unconfirmed
- Observation
- Load-dependent IR drop, progressive resistance rise, and intermittent or permanent opens
- Evaluation stage
- High-current / high-temperature operation, reliability stress, and failure analysis
- Variables to validate
- Current density, temperature, interconnect geometry, current crowding, materials, and power topology
- Missing information
- Per-path electrical timelines, workloads, thermal maps, geometry, and physical failure locations
Paths to assess first
Paths serve different purposes and can be combined01
Load-dependent electrical and location correlationSeparate reversible voltage drop, progressive resistance, and permanent opens
First02
3DIC electrothermal EM / IR analysisCompare current density, temperature, and current crowding
First03
Targeted interconnect physical analysisCross-check electrical anomalies with microbump / Cu-pillar locations
LaterCurrent candidate solutions
Sample suitability still needs confirmation3DIC electrothermal EM / IRRedHawk-SC Electrothermal 3DIC EM / IR analysisAnsys · Can help answer: Which interconnects have higher EM / IR risk under actual load and thermal boundaries?
→Interconnect design reviewCu-pillar geometry, materials, and current-crowding input reviewBLNKK editorial assessment workflow · Can help answer: Does the model include actual geometry and materials affecting current crowding and EM?
→Failure localizationTargeted microbump physical analysis after electrical localizationASE · Can help answer: Do physical interconnects on abnormal paths show independently cross-checkable defects?
→Next: confirm engineering conditionsUse 3 key conditions to adjust the assessment order, then choose solutions to compare.
Check engineering conditions →