Your solution map
BGA drop-induced pad cratering
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 paths12 candidate solutions12 sources
BLNKK's current understanding
Please check the details- Structure / bonding interface
- Resin / glass-fiber material beneath PCB pads
- Observation stage
- Drop, bending, or mechanical impact
- Phenomenon to localize
- Substrate fracture beneath pads and open circuits
- Engineering decision
- Use fractured-layer and board-bending / impact data to determine board-material, fixturing, or mechanical-load controls
- Sample evidence still required
- Which layer contains the original crack, and what artifact controls are used during component removal and sampling?
Paths to assess first
Paths serve different purposes and can be combined01
Localize original fractured layers beneath padsSeparate substrate, solder, and IMC
First02
Compare board material / fixturing and local loadingCompare actual events and layer stacks
First03
Relative comparisons using pad pull, shear, and related methodsFix the method and retain limitations on transfer to the actual event
FirstCurrent candidate solutions
Sample suitability still needs confirmationAssess targeted sampling of substrate material beneath padsASE · Can help answer: Published localization and cross-section capabilities can help check original substrate cracks and preparation scope.
→Assess relative pad / bump pull and shear comparisonsNordson Test & Inspection · Can help answer: Published pin / bump pull, shear, and fixture options can be assessed against defined methods.
→Joint review of board material, fixturing, and mechanical methodsBLNKK engineering review request (provider unconfirmed) · Can help answer: Compare fixturing, board materials, or load controls only when actual local loading and same-method material / pad comparisons are both available.
→Next: confirm engineering conditionsUse 5 key conditions to adjust the assessment order, then choose solutions to compare.
Check engineering conditions →