Redacted layout showing CTQ callouts, datums, and how pass/fail is stated.
Case study • CTQ evidence • Export-ready delivery
Case Study: Kitted Alignment Brackets (Small Batch + Labeling for Assembly)
An anonymized case where small-batch alignment brackets were delivered as a labeled kit to support fast assembly and prevent receiving confusion for a U.S. program.
Program snapshot
Customer: Semiconductor equipment OEM (U.S. program; name withheld)
Part: A set of alignment brackets and subcomponents used in tool assembly
Why it mattered: Small-batch kits can create receiving confusion if labeling and revision control are weak
SEMIX role: Machining, inspection evidence, and export-ready kitting/labeling
| Field | Details (public) |
|---|---|
| Material / finish | Anonymized (share under NDA if needed) |
| Size envelope | Anonymized (available under NDA) |
| Qty range | Prototype to low-volume programs (anonymized) |
| CTQ focus | Datums + functional features (CTQs defined at RFQ) |
| Tolerance & verification | Tight/critical features verified on CTQ-focused report (ranges shared under NDA) |
| Lead time | Quoted per RFQ; schedule aligned to customer gate dates (ranges under NDA) |
| Evidence pack | CTQ report • CoC • material/finish certs (as applicable) • packaging notes |
Key requirements
| Area | Requirement |
|---|---|
| Fit / alignment | Hole patterns and datums required positional integrity (per drawing CTQs) |
| Consistency | Parts in the kit needed consistent edge treatment and surface finish expectations |
| Kitting | Parts delivered as a set with labels aligned to PO lines and revision |
| Documentation | Single documentation package to support receiving and assembly |
| Schedule | Quick turnaround to support assembly schedule |
How we executed
SEMIX approached the build as a controlled workflow: confirm CTQs, plan measurement methods, and prevent revision drift.
- Kit definition: confirmed kit contents, labeling scheme, and revision references.
- Routing stability: planned machining to keep datums consistent across the kit.
- CTQ inspection scope: defined key dimensions and reporting format for receiving.
- Kitting process: packaged and labeled each subcomponent, then assembled into a master kit package.
- Documentation bundle: shipped a single documentation pack mapped to the kit.
Quality evidence and documentation
To make receiving easy for a U.S.-based program, we shipped with evidence aligned to CTQs and revision control.
- Kit-level labeling by PO line and revision to prevent mix-ups
- CTQ inspection report covering fit/alignment features
- CoC with revision references
- Export-ready packaging designed for easy receiving and line-side usage
Evidence pack preview (redacted)
On request, we can share redacted examples of the exact report formats our U.S. buyers receive—so your receiving team knows what to expect.
Revision- and PO-linked CoC format used for receiving acceptance.
Redacted packaging notes for protection, labeling, and kitted shipments (if applicable).
Outcome
- Assembly team received a ready-to-use kit with minimal receiving friction
- Revision control prevented mix-ups between iterations
- CTQ-focused reporting accelerated acceptance and reduced inspection effort at the buyer side
Outcome metrics are anonymized. The point is the workflow: stable routing, CTQ measurement, and receiving-ready documentation.
Outcome highlights
Evidence formatted for receiving review; CTQs highlighted to reduce back-and-forth.
CTQ inspection plan executed; CoC and required certs packaged with the shipment.
Delivery and documentation aligned to the customer’s internal gate / PO flow-down.
Deep dive (technical briefs)
If you want the engineering rationale behind the controls used in this program, start with these related briefs from our Technical Academy:
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Packaging Qualification for Precision Machined Parts | ASTM D4169
Applied packaging engineering for global shipping: ASTM D4169 distribution hazards, no-contact packaging design, corrosion control, and qualification evidence to prevent shipping-induced defects.
Read the full brief
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Product Cleanliness for Machined Parts | ISO 14644 & IEST‑STD‑CC1246
Applied contamination control for CNC machined parts: specify cleanliness levels, control particle sources, verify by extraction, and design packaging/handling workflows for semiconductor-adjacent supply chains.
Read the full brief
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Decision Rules with Measurement Uncertainty | ISO 14253‑1 + ILAC G8 + GUM
Applied guide to uncertainty-based decision rules: guard bands, false accept/reject risk, and dispute-proof statements of conformity for precision CNC machining suppliers serving U.S./EU buyers.
Read the full brief
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Acceptance Sampling for Machined Parts | ANSI/ASQ Z1.4 vs Z1.9
Applied acceptance sampling for CNC machining: when to use ANSI/ASQ Z1.4 (attributes) vs Z1.9 (variables), how switching rules work, and how to align sampling with CTQ risk for U.S./EU buyers.
Read the full brief
Evidence patterns (technical case studies)
Incident-style write-ups that show how SEMIX handles common failure modes and prevents receiving disputes:
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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.
Read 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.
Read the case
Documentation templates (print-to-PDF)
Want consistent receiving-ready evidence? These templates show typical formats SEMIX can provide with shipments (redacted samples available under NDA):
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Certificate of Conformance (CoC) template
Buyer-friendly CoC with clear scope, drawing revision reference, and statement of conformity.
Open template
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Inspection plan (CTQ) template
Characteristic table with method, sampling, decision rules, and reaction plans—built for high-trust programs.
Open template
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Final inspection report template
A report structure that reduces disputes: conditions, CTQ highlights, and declared decision rules.
Open template
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Packaging & shipping checklist template
Packaging spec, label control, photos, and shipment signoff for export-ready delivery.
Open template