Notes
Quality engineering notes
Short writing on 8D, SPC, SMT/PCBA quality, and AI-assisted quality engineering.
8D · 6 min
What makes an 8D survive customer reviewA practical checklist for root-cause logic, escape cause, evidence, and corrective actions that hold under scrutiny.
SPC · 5 min
Reading Cpk without false confidenceCpk is a decision input, not a trophy. Stability, sample strategy, and special causes matter more than a single number.
SMT Quality · 7 min
SMT quality signals that actually matterFrom paste print to AOI: which signals deserve escalation, and which are noise in a healthy process.
AI for Quality Engineering · 6 min
Where AI helps quality engineering — and where it must notAI can accelerate review and structure. It cannot replace verified evidence, process ownership, or customer accountability.