Laser Cutting Residue

Substrate: Flexible Electronic Substrates

Contamination Challenge

A Laser-based cutting process produces a conductive carbonaceous soot on the polymeric surfaces along the Laser cut pattern which must be removed prior to next steps in the device fabrication process. The soot is a potential cause of electrical shorts and interferes with subsequent electroplating operations.

Solution

Robotic CO2 Composite Spray™ cleaning process and system.

  • Benchtop Cartesian robot
  • Robot has an end-of-arm spray tool (EOAT ) comprising a single CO2 composite spray applicator
  • Cleaning cell with a local exhaust system

Benefits

  • 100% dry processing – Dry-In/Dry-Out
  • Selective cleaning (contaminated Laser cutout pattern)
  • Low operational cost
  • Minimal labor input