Your solution map
Internal voids in substrate microvia copper fill
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 paths9 candidate solutions9 sources
BLNKK's current understanding
Please check the details- Structure / bonding interface
- Interior of electroplated copper in organic-substrate microvias
- Observation stage
- After copper-fill fabrication and before assembly
- Phenomenon to localize
- Fill voids, dimples, or seams
- Engineering decision
- Use intravia morphology and batch distributions to plan electroplating / pretreatment windows and representative sampling.
- Sample evidence still required
- Is the void in the copper-fill body or at a Cu / Cu interface after thermal loading?
Paths to assess first
Paths serve different purposes and can be combined01
Intravia morphology and representative samplingFirst localize incomplete fill and void distributions in the copper body
First02
Via formation / pretreatment / metallization comparisonsHold via geometry constant when comparing inputs before copper filling
First03
Copper-fill electroplating and location-distribution comparisonsHold pretreatment constant when comparing bath / equipment windows
FirstCurrent candidate solutions
Sample suitability still needs confirmationEvaluation of targeted analysis and sampling of the copper-fill bodyASE · Can help answer: Public non-destructive and cross-section capabilities may support evaluation of microvia morphology at known locations.
→Evaluation of InPro SAP3 as a microvia copper-fill candidateMKS / Atotech · Can help answer: Public IC-substrate BMV capabilities can be included in chemistry / equipment comparisons.
→Joint review of pretreatment and copper-fill windowsBLNKK engineering review request (provider unconfirmed) · Can help answer: Compare metallization inputs and electroplating responses only when data from both stages are complete.
→Next: confirm engineering conditionsUse 4 key conditions to adjust the assessment order, then choose solutions to compare.
Check engineering conditions →