Fairbuild turns quality flags into settlement decisions.
High-volume optical manufacturing does not need another static dashboard. It needs a diagnostic record that explains what changed, why it matters, and whether a funded milestone should release, pause, or enter deterministic re-inspection.
One anomaly, traced across manufacturing evidence.
Fairbuild joins fixture genealogy, metrology logs, recipe history, operator notes, and settlement rules into one reviewable artifact. The output is not a plot attachment. It is a decision record.
Evidence bundle
Verified sources| Field | Value | Reason it matters |
|---|---|---|
| Fixture cell | WLO-F4 / socket C17 | Matched to station genealogy |
| Inspection lot | AR-0426-17B | 18,240 units sampled |
| Evidence window | 02:10-02:42 local | After recipe revision 9.3 |
| Signals used | MTF50, SFR edge, focus z | MES, metrology, operator log |
Root cause
Confidence 0.94The failed units share one fixture socket after recipe revision 9.3. Neighbor sockets recover yield under the same lot, recipe, and operator shift, isolating the issue to mechanical seating.
Parameter drift
Baseline comparison| Parameter | Observed | Baseline relation | Gate |
|---|---|---|---|
| Center MTF50 | -1.8% | Inside guardrail | Pass |
| Corner MTF50 | -11.6% | Outside P95 baseline | Fail |
| Focus z offset | +42 um | Socket-specific excursion | Fail |
| Re-inspection yield | 98.7% | Recovers on F4-C18 | Pass |
Settlement consequence
Contract rule applied- Release verified units from unaffected sockets inside the normal 48-hour review window.
- Hold C17 quantity only, with evidence attached to the milestone exception.
- Trigger deterministic re-inspection after socket reseat, capped at 96 hours.
From cross-timezone diagnosis to reviewable manufacturing proof.
The old process starts with a yield flag and ends after engineers manually pull SQL dumps, regenerate plots, and debate which station moved. That delay is expensive because settlement and production disposition wait on the same unanswered question.
Fairbuild compresses that investigation into a structured report. It names the evidence, exposes drift against baseline, explains the likely physical cause, and maps the result to the contract's review and re-inspection path.
Diagnose the evidence before the milestone stalls.
See how Fairbuild turns quality gates, factory evidence, and funded settlement into one operating workflow.
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