DE35-ST Operating Instructions
D292469I 91
13. GO DOWN TO PLACE HEIGHT
The Pickup Arm will move down to place height to place the die into the Waffle
Pack. Use the UP/DOWN keys to adjust the place height. Use the ARROW keys
to properly position the die into the pocket.
14. OPEN GRIPPERS
Vacuum to the Grippers is turned OFF and the Grippers open, releasing the die
into the pocket.
15. WAIT N.NNN SECS FOR THE GRIPPERS TO OPEN
Displayed time is the time the pickup arm waits in the current position for the
Grippers to open.
16. GO UP TO TRAVERSE HEIGHT
The Pickup Arm will rise to traverse height to clear obstructions when moving.
17. FINISH CYCLE
Pickup Arm goes to the wait position just to the right of the field of view of the
Optics. This position is adjustable using the Left/Right Arrow keys. This position
can be placed as close to the pick position as the Operator wants to improve
through-put.
Edge Pick Up
When the die is elevated, it is essential that the die be lifted without obstruction. If the
die bumps into the Gripper Fingers during ejection, the pickup process will fail.
During die elevation, the Gripper Finger will be at the pick height. Using Single Step
Mode, adjust this height using the UP/DOWN keys. The goal is to ensure the Gripper
Fingers satisfactorily pinch the die but do not make contact with un-picked die
remaining on the wafer.
NOTE: Occasionally during setup, it may be useful to open or close the gripper
fingers manually. To do this, press the YES key.
When the Gripper Fingers are activated, they will take a certain amount of time to close
completely. The time required is a function of the currently selected Vacuum Force and
the Vacuum Flow Needle Valve Setting. Using Single Step Mode, the delay time can be
adjusted when WAIT 0.100 SEC FOR GRIPPERS TO CLOSE shows in display. Adjust delay
time by pressing + / - keys.
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