Your solution map
TSV reveal height and backside coplanarity
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 paths8 candidate solutions10 sources
BLNKK's current understanding
Please check the details- Structure / bonding interface
- Revealed TSV Cu and backside bonding surfaces after thinning
- Observation stage
- Backside reveal through pre-metallization / bonding
- Phenomenon to localize
- Uneven Cu reveal height or in-plane coplanarity
- Engineering decision
- Use height maps and staged measurements to define thinning, etching, and surface-planarization windows
- Sample evidence still required
- Does measurement separate local Cu reveal height from full-wafer topography?
Paths to assess first
Paths serve different purposes and can be combined01
Relative Cu reveal height and coplanarityCompare local Cu reveal and full-wafer topography separately
First02
Staged thinning-to-etch windowsIsolate the stage introducing height deviations
First03
Pre-bond surface-planarization requirementsCompare Cu reveal with downstream surface / metal requirements
FirstCurrent candidate solutions
Sample suitability still needs confirmationTSOM Cu reveal-height research-method evaluationNIST · Can help answer: Research demonstrations support relative height / dimensional comparison for engineering measurement-feasibility assessment.
→Rapier XE reveal-uniformity and endpoint approachKLA / SPTS · Can help answer: Compare public blanket-silicon-etch capabilities with staged traces; confirm sample and stack compatibility first.
→Staged-window and pre-bond planarization-requirement reviewBLNKK engineering review request (provider unconfirmed) · Can help answer: Staged localization and downstream targets are both needed for comparable planarization requirements.
→Next: confirm engineering conditionsUse 4 key conditions to adjust the assessment order, then choose solutions to compare.
Check engineering conditions →