Quality Control

1. Material
Incoming inspection,  temperature and humidity control for warehouse.

2. Inner exposure area
Temperature and humidity control, dust-free control, LDI exposure(without film).

3. Development and etching
Liquid analysis regularlly and added automatically.

4. AOI for inner layer
100% AOI inspection

5. Lamination
Fool-proof design, automative equipment

6. Drilling
100% hole size inspection by hole check machine

7. Plating
Analysis liquid regularlly, FAI copper thickness for each batch.

8. Dry film
Temperature and humidity control, FIFO management

9. Solder mask exposure
Temperature and humidity control, dust-free control, LDI exposure(without film).

10. Silkscreen
Silkscreen inkjet printer printing

11. Immersion gold, electric gold
Production in house, quality control

11. Routing
First article record, V-Cut inspection, parameter setting, depth, spacing, and overall dimensions.

12. Electrical testing
High-speed flying Probe machines and 4-wire testing machines

13. FQC/FQA
Inspection according to customer requirements and IPC standards