Your solution map
Local interface voids after hybrid bonding
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.
3 priority paths18 candidate solutions20 sources
BLNKK's current understanding
Please check the details- Bonding architecture
- Cu / dielectric hybrid bonding; wafer-to-wafer (W2W) or die-to-wafer (D2W) configuration unconfirmed
- Observed behavior
- Localized voids or microvoids after bonding
- Detection stage
- After bonding or annealing; details needed
- Potential variables
- Particles, Cu recess, surface activation, wafer warpage, bonding temperature, and pressure
- Missing information
- Void size and location distribution, pre- and post-bond inspection, sampling rate, and destructive analysis
Paths to assess first
Paths serve different purposes and can be combined01
Post-bond void and interface inspectionEstablish defect-location and size baselines
First02
Pre-bond particle and surface metrologyTrace defects upstream
First03
Wafer topography, surface profiles, and Cu recessSeparate global and local nonuniformity
First04
Cleaning, activation, bonding, and annealing DOETest process causality
LaterCurrent candidate solutions
Sample suitability still needs confirmationPost-bond inspectionEchoScan void detection systemOnto Innovation · Can help answer: Where are the voids, and what are their sizes and distribution?
→Pre-bond metrologyDragonfly G3 2D / 3D inspection and metrologyOnto Innovation · Can help answer: Were corresponding defects already present before bonding?
→Defect inspectionAdvanced-packaging inspection and metrology solutionsKLA · Can help answer: Do defect, topography, and edge metrics drift together?
→Next: confirm engineering conditionsUse 3 key conditions to adjust the assessment order, then choose solutions to compare.
Check engineering conditions →