PCB Inspection after Fabrication

• Check initial look of board. 
• Note cleanliness and appearance.
• Check mask, including:
• Specified color 
• Specified thickness 
• Quality 
• Blemished 
• Pitting
• Is plating adequate? 
• Are holes centered in pad (annular ring and alignment)?
• Are hole sizes correct? 
• Are layers registered? 
• Adhesion test 
• Does appearance match artwork? 
• Does silkscreen match artwork? 
• Are overall board dimensions correct? 
• Is board warped? 
• Is any copper showing on board edges? 
• Trace width in tolerance 
• Check electrically the following items:
• Several plated holes front to back (less than 2 Ohms) 
• Longest trace from one end to the other (less than 5 Ohms per inch, or specified value) 
• Resistance between planes of different nets for shorting (should be open) 
• Test pads closest place for continuity (known opens should read open)