Preview sample formats for CoC, CTQ inspection reports, and packaging checklists.
Proof • Process → evidence → delivery
Projects & Case Studies
Buyer-facing case studies that show how SEMIX controls CTQs, measurement risk, packaging, and documentation—from RFQ through export shipment.
Proof
Evidence you can request at RFQ
Start with a flagship buyer-facing case, then browse by risk theme to go deeper into controls, evidence patterns, and templates.
Browse by industry
Browse by risk theme
Filter projects and incident-style evidence patterns by the buyer risk you’re trying to eliminate (measurement disputes, thermal drift, particles, transit damage, wear drift, 5‑axis orientation errors).
Semiconductor case studies
Flatness‑critical fixture plate with CTQ evidence and export-ready delivery.
MeasurementThermal
Sealing groove features + flatness CTQs for tool-build applications.
MeasurementThermal
Two anonymized programs (semiconductor + medical) focused on burr/particle control, CTQ inspection evidence, and receiving-ready packaging.
CleanlinessPackaging
Small batch kit with labeling and documentation to reduce receiving friction.
Packaging
Aerospace case studies
Multi-axis bracket with positional requirements and receiving-ready documentation.
Measurement5‑Axis
Concentricity-driven CTQs with inspection evidence for a U.S. program.
Measurement
Datum stability and repeat hole patterns for aerospace assembly.
Measurement
Small batch titanium component with CTQ evidence and careful handling.
MeasurementWear / drift
Medical case studies
Medical tooling parts with documentation and inspection evidence.
Measurement
Prototype→pilot housing with cosmetic/functional expectations and finish coordination.
MeasurementPackaging
Burr-free plastics machining with fit-critical CTQ evidence.
MeasurementCleanliness
Stainless component with treatment scope + documentation package.
Measurement
Evidence patterns (technical case studies)
These incident-style case studies show how SEMIX prevents shipping escapes, measurement disputes, and late-batch quality surprises—use them to evaluate corrective-action capability before placing a PO.
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Case Study (Semiconductor): Particle Fail After Transit | Burr Latency + Packaging Micro‑Motion
Parts passed dimensional and visual checks but failed particle extraction after transit. Root cause was latent burr fracture and packaging-induced micro-motion. Includes corrective actions and evidence pack.
CleanlinessPackagingRead the case
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Case Study (Semiconductor/Vacuum): Flatness Dispute Solved | Thermal State + Decision Rules
Flange flatness passed at supplier but failed at customer. Root cause traced to thermal-state mismatch and missing uncertainty-based decision rules. Includes corrective actions and reporting template.
MeasurementThermalRead the case
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Case Study (Vacuum): Helium Leak “False Fail” | Fixture Background Dominated Signal
Apparent helium leak failures traced to fixture background helium and inconsistent stabilization. Corrected using disciplined baseline checks and ISO 20485 / ASTM E499 method logic.
MeasurementThermalRead the case
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Case Study (Aerospace): Late‑Batch Reject Spike | Wear‑Driven Regime Change
Rejects appeared late in the batch. Root cause was wear-driven cutting regime change shrinking stability margins. Fix used wear gating plus EWMA/CUSUM drift detection.
MeasurementWear / driftRead the case
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Case Study (Aerospace 5‑Axis): Orientation‑Dependent True Position Failure | ISO 230‑7 Logic
True position failed only at certain tilts. Root cause traced to rotary-axis geometry error and post/kinematic mismatch. Fix used ISO 230‑7 style verification and orientation sweeps.
Measurement5‑AxisRead the case
How to use these case studies
These case studies are written to help buyers qualify a Vietnam CNC machining supplier. Customer names and sensitive details are withheld, but the workflow is real.
- Engineering: see routing choices, CTQ thinking, and where risk is reduced
- Supplier quality: see how evidence packages and revision traceability are handled
- Procurement: understand how assumptions and documentation reduce receiving friction
FAQ
Are these case studies real?
Yes. Details are anonymized to protect confidentiality, but the workflows and deliverables reflect real program work.
Can you share unredacted examples?
We may be able to share redacted sample documents under NDA depending on the program.
Do you support first-article builds?
Yes. First-article support and CTQ-focused inspection evidence are available by agreement.
What industries do you support most?
Semiconductor, aerospace-adjacent, medical-adjacent, and industrial machining programs.
How do we start a new project?
Submit an RFQ package (NDA first if needed) with drawing/model, material/finish, CTQs, quantity, and documentation requirements.