Preparations; Sample Fixing And Load Adjustment - Logitech PM5 User Manual

Lapping & Polishing System Logitech PM5 user manual 2017/05/08
Other definitions:.
Vacuum pump: it has it's own power switch,
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Conditioning ring: used for the polishing cloth conditioning and cleaning,
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Pet bottle: used for slurry storage and supply,
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Sink: used when cleaning with pure water,
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Nylon brush: used for cleaning the plate.
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3. Preparations

3.1. Fill out the log sheet,
3.2. Put on an apron in order to keep the clean suit clean,
3.3. Close the trap leak valve B and check that valve A is closed too,
3.4. Switch on the power strip, the machine, and the pump,
3.5. Set the plate on the main body. Be careful as it is very heavy. Align the plate with the main body by inserting
the plate pins into the support holes. Be careful not to pinch your fingers.
There are 3 types of plate:
3.5.1. Stainless plate with polishing cloth for general polishing,
3.5.2. Stainless plate with polishing cloth for SiC polishing (the polishing powder for SiC is colloidal silica which
has bigger grains then alumina, that's why there is a special cloth),
3.5.3. Cast iron plate for lapping,
3.6. Set the roller arm. The bottom of the roller harm should be 5~10mm above the polishing cloth,
3.7. Push the button at the extremity of the red lever,
3.8. Continue (push the button again),
3.9. Machine setup:
3.9.1. Select lapping or polishing,
3.9.2. Jig type: PP6
3.9.3. Arm control: static
3.10. Exit
3.11. Process screen → OK → OK → set time to 10min,
3.12. Set the roller arm sweep (change rpm by rotating the lever).

4. Sample fixing and load adjustment

4.1. Set the hotplate temperature to 80°C,
4.2. Put the sample fixing tool on the hotplate. From now on, be careful not to burn your hands,
4.3. Clean the ceramic plate with wipers and ethanol. Don't apply ethanol when the plate is hot or it may break,
4.4. Wait until the ceramic plate warms up to the wax fusion temperature (~55°C) (few minutes until the wax
melts). If you need to change the polishing cloth, you can do it now,
4.5. Clean the ceramic plate with wax:
4.5.1. Apply some wax on the ceramic plate in a centered circle of about 60~70mm diameter,
4.5.2. Wipe off the wax with a wiper,
4.6. Apply again some wax on the ceramic plate, on a surface just a little larger than the sample surface,
4.7. Set the sample on the ceramic plate (on the wax),
4.8. Press the top of the sample with a wiper and make it slide in small circles in order to remove air bubbles and
dust,
4.9. Put a wiper piece over the sample, then put the teflon block, and hold it down with the sample fixing tool rod
(cf. Fig. 8),
4.10. Wait 5 min,
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