Handlers with Machine Vision Inspection

Machine vision can perform one or a combination of a number of functions:
Device present 2D Lead/ball/pad inspection Pin 1 present in 1 to 4 rotation positions
Mark present 3D Lead/ball inspection Package dimension verification
Mark inspection:
2D data matrix read/verified OCR (optical character recognition) Pattern quality check
Tray barcode read OCV (optical character verification) Pattern or 2D verification
Whole tray inspection Robot alignment

Exatron has built numerous handlers integrating inspection for various purposes.

 Strip Inspection

  • Strip magazine input/output
  • Laser mark
  • Machine vision inspection
  • Strip at post-laser-mark inspection site

 Auer Boat Inspection

  • Auer boat magazine input/output
  • Machine vision inspection
  • Laser mark
  • Inspection site on left
  • Laser mark site on right

 Multiple-Output Device Test & Inspection

  • Quad tube input
  • Quad pickup head
  • Five-tube output for test sorts
  • Test passes go to inspection
  • Test & inspection failures go to separate buckets
  • Inspection passes go to
    tape-&-reel
  • Inspection site between test fail bucket & inspection fail bucket

 Mobile Cameras

  • Camera mounted on pickup car
    (at right of nozzles)
  • In-tray inspection
  • Camera mounted on pickup car
    (between nozzles)
  • In-tray inspection
  • Camera mounted on laser
  • Fixed position in relation to laser height ensures consistency with laser

 Multiple-Camera Inspections

  • Cameras for same purpose
    simultaneously inspect multiple devices
  • Pre-laser-mark alignment inspection for mark location
  • Post-laser-mark verification
  • Cameras for different purposes
    inspect same device
  • Pre-etching verification of blank device
  • Post-etching mark verification
  • Cameras for different purposes
    inspect same device
  • Right camera reads device ID, matches to log file
  • Left camera reads device ID, matches to tape pocket number
  • Cameras for different purposes
    inspect combination devices
  • Camera 1 for device orientation
  • Camera 2 for device placement at assembly
  • Cameras for different purposes
    inspect combination devices
  • Camera 1 (looking up) for device orientation at pickup
  • Camera 2 (on pickup gantry, looking down) for device placement at assembly
  • Cameras for different purposes inspect same devices
  • Bottom-side dual-DUT 3D ball inspection (left)
  • Top-side post-laser-mark inspection (right)
  • Ping-pong handler with dual independent inspection & operation
  • Each half can be set up independently with 2 different devices
  • Two test sites
  • Two sets of thermal heads
  • Two cameras
  • Cameras for same or different purposes independently inspect different devices
  • Additional bar code scanner mounted on quad pickup car for in-tray bar code reading

 Manual Tape-&-Reel Inspection

  • Inspection for device presence, ID mark, & orientation
  • Inspection failures stop tape for operator’s fix

Screenshots from various machine vision programs Handlers with image sensors


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