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PCB

Printed Circuit Board (PCB) is composed of layers of copper and FR4/5 or BT resin.  PCB is used as a substrate for mounting.  Typical thickness is 0.3 mm to 2 mm

Major Considerations:

Cut quality:

  • Copper burrs
  • Smearing


Saw:

Automatic (7120 series) or fully auotomatic (7220 series) dicing systems – enhanced process control tools with very high automation level, large area capabilities

Blade:

  • 2″ and 4″ Nickel blades (serrated and standard edge) “T”, “V” matrixes
  • Diamond grit size: 10 – 50 µm
  • Thickness: .003″ – .0012” (0.075 – 0.3 mm)


Process Parameters:

  • Feed rate: 50 – 150 mm/sec
  • Spindle speed: 2″ : 25 – 30 krpm
                               4″ : 12 – 20 krpm