Laurell Technologies
Operations Manual WS-650-Lite Series
Revision Date: 7/26/2011
All information contained in this manual is the property of Laurell Technologies Corporation® and is NOT to be edited, reproduced or
distributed without express written permission from a corporate officer.
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2. Open the lid; place and align a substrate on the chuck. Press the “Vacuum” key
to activate the vacuum valve if vacuum is required. Sufficient vacuum to hold the
substrate is required to start the motor. If using a non-vacuum chuck the vacuum
requirement can be disabled in the edit mode.
3. Close lid.
4. Press “Start” key to start a program. The program will not start until the vacuum
hold down requirement is met (vacuum chucks only), the seal purge requirement
is satisfied, exhaust flow is correct and the lid is closed. The program will stop
automatically if the lid is opened, the N
2
motor seal purge is not satisfied (>60
PSI), exhaust drops or increases beyond the set point or the vacuum
requirement for hold down is not maintained. The remaining process time will be
maintained.
5. “Done” will be displayed when the process is completed and the lid has not yet
been opened for wafer removal. Restarting the same sequence on the same
wafer is not allowed until the lid is opened or the “Edit “key is pressed then the
“Run” key.
3.7 - REMOVING/CHANGING CHUCKS
3.7.1 “SCREW ON” CHUCK
Hold the two horizontal arms on the column below the base of the chuck. Turn
the chuck counter-clockwise to remove (see fig. 3-12A), and clockwise to install,
making sure the chuck is snug (see fig.3-12B).
DO NOT OVER TIGHTEN (especially Teflon)!
Figure 3-12A
Figure 3-12B
3.7.2 “PRESS-ON” OR “SCREW DOWN” CHUCK
Laurell Technologies also uses a press-on or screw down chuck with our standard drive
motors. These two styles of chucks are interchangeable – the press-on is a chuck
which presses onto the motor shaft adapter and the screw down chuck screws onto the
motor shaft adapter. See photos below to identify which chuck design you have.
1. Press-on Chuck:
To remove the chuck, gently lift up on the edges; lift one side
then the other. To install a chuck (see figure 3-13), align the 2 locating pins on
Threaded motor
shaft and chuck
Horizontal arms
Installed chuck