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SMT Quality Review

Use this guide when manufacturing, process, or quality teams need to connect SMT line records with operational context and reviewed action planning.

Review Flow​

Prerequisites​

RequirementWhy it matters
Line ownerOEE and bottleneck results need manufacturing review.
Quality ownerDefect classes and DPMO inputs need quality approval.
Product contextDefect comparison depends on product and period.

Inputs​

InputReview focus
Line recordsLine ID, station, period, status, and OEE.
Production recordsUnit count, run time, downtime, and product context.
Defect recordsDefect type, count, severity, station, product, and inspection source.
DPMO inputsDefect count, unit count, opportunities per unit, and assumptions.
Bottleneck modelStation cycle time, uptime, buffers, duration, and board count.

Procedure​

  1. Select the SMT line, product context, and review period.
  2. Review OEE, production, and downtime context.
  3. Normalize defect categories and check severe or repeated issues.
  4. Calculate DPMO only when input assumptions are complete.
  5. Run bottleneck simulation or estimate with recorded assumptions.
  6. Assign quality, process, or maintenance actions with owner and deadline.

Expected Output​

The review should produce a line-level quality record with OEE context, defect priorities, DPMO assumptions, bottleneck notes, and owner actions.

Validation Checklist​

  • Line, product, and period are explicit.
  • Defect categories are normalized before comparison.
  • DPMO inputs include opportunities per unit.
  • Bottleneck assumptions are recorded.
  • Actions have owner, due date, and evidence.

Failure Handling​

SymptomResponse
Product context is missingDo not compare defect rates until product scope is known.
DPMO assumptions are incompleteKeep the calculation as a review draft.
Simulation assumptions are weakRecord cycle-time and uptime gaps before using the result.
Action owner is unclearKeep recommendation in decision review until assigned.