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Ke

Kenji

Quality & Yield Advisor

Conversation

Cites Enterprise Brain
Why did Penang Line 3 drop 4 points overnight?
Ke

Kenji

Situation

FPY fell from 95.1% to 91.2% between 22:00–06:00. Drift correlates with reflow zone-4 temperature trending +6°C over the last 9 hours.

Impact

  • 1.
    BSK-A14 PCBA — ~340 boards reworked, ~$22k rework cost projected
  • 2.
    BSK-A14 PCBA — Sonova Q1 audit window opens Friday — keep CAPA visible
  • 3.
    Line 3 throughput — Effective capacity −7% if uncorrected through next shift

Recommended actions

Push corrected reflow profile to MES

Pre-validated against last 30d golden lot.

Open CAPA + schedule oven PM

Routes to Maintenance via Agent Studio.

SourcesMES: Line 3 logSPC: Zone-4 trendCAPA-2024-118
Replies cite SAP, MES, Salesforce + web sources