The examples below indicate the types of defects VISPER can detect.

PAD

Solder mask ink on pad	Scrach on copper	Faulty gold plating	Insufficient solder	Copper remaining

Copper discoloration	Dents on pad	Scratch on pad	Lack of pad	Fiducial mark defect

Solder Mask

Copper exposure	Foreign material	Copper exposure	Scratch on solder resist	Solder mask discoloration

Other

Marking defect	Marking  defect	PWB(PCB) crack	Flux in the hole	V-Cut missing

Excess solder	Foreign material	Scratch	Copper exposure	Copper exposure

Scratch	Scratch	Foreign material	Foreign material	Copper exposure