Contract acoustic interface inspection and reporting

PVA TePla · Packaging processes and engineering validation

Purpose: Commission bonded-interface observations when in-house acoustic equipment is unavailable, comparing suspect samples with controls or process variants.
Technical approach: PVA TePla’s laboratory agrees on acoustic measurement and evaluation methods, providing graphical assessments and test reports.
Scope of use: Discuss SAM measurements for the actual stack; establish visibility of the target hybrid-bond interface and voids through sample evaluation.
Limitations and open questions: These evaluation considerations are compiled by BLNKK from public information. They are not supplier guarantees or a mandatory submission checklist.
Scope and limitations
Acoustic anomalies alone do not establish void causes or visibility of every thin interface. General laboratory material/size coverage is not stack-specific validation.
What to prepare
BLNKK suggests preparing stack/material/thickness details, target interfaces, suspect/control locations and existing images. Describe sample handling and whether coupling-liquid exposure is acceptable.
Confirm with the supplier
Confirm acoustic access, sample/coupling compatibility and target-defect visibility. Agree on scanning, interpretation, image/raw-data deliverables and complementary checks.
Public evidence: The service page documents tailored strategies, internal-defect/interface imaging and reporting, without specific thin hybrid-interface resolution or detection qualification.

Supporting references

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