IMPEDANCE
Main PCS process impedance 50Ω management plan
Impedance management chart
Specifications(CAM)
Simulation and circuit correction
Commitment
Copper plating
Surface copper plating thickness measurement
D/F , E/T
Product circuit realization and measurements check
Router
Measurement/Analysis
Impedance (coupon) measurement
Final inspection
Delivery
Measurement management standard
| Measuring STEP | Items | point | Management method | Remark |
|---|---|---|---|---|
| D/F | Circuit width | 3point / Lot | Excel sheet -> computerized records | |
| Impedance(coupon) | 3pnl | Computerized records of measurement data | ||
| Measurement/Analysis | Impedance(coupon) | 3pcs | Computerized records of measurement data | |
| Final inspection | Impedance(coupon) | 3pcs | Computerized records of measurement data with notice given to the specification team |