UV Marker for innerlayer registration TIR 24

UV markers for innerlayer registration marks for highest precision TIR 24

Highlights

  • Double-sided exposure of the UV marks at different positions (in the direction of passage)
  • UV registration marks diameter Ø 3 mm
  • Congruence of the upper and lower UV mark better than 5 μm
  • High edge sharpness of UV-marksexposure achieved within 2-3 sec.

Description

The UV registration marks will be exposed before the DI/ LDI process on a dryfilm covered innerlayer with high edge accuracy on both sides and the edge of the PCB. At different positions (in the direction of passage), this exposure takes place with a congruence of the upper and lower UV mark to each other of less than 5 μm.

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