NANOSYSTEM FABRICATION FACILITY (NFF), HKUSTVersion 1.1 Page 24 of 242. Write down any problems or comments in the log sheets.4.16 Clean upClean the chuck and make sure everything is back to the original place.4.17 Check outCheck out the equipment in the NFF equipment reservation website or CardReader after use.4.18 Machine Shutdown (For Staff ONLY!)1. Press “CHANGE MASK” key and the mask holder will be released. With themask vacuum ON, pull the mask holder out, flip it 180° and store it on the tray tothe left compartment. Press “ENTER” key to switch the mask vacuum OFF.Retract the mechanical clamping and remove the mask.2. Toggle Power Switch Electronic to position OFF.3. Turn off the CIC by pressing on the OFF button.- Leave nitrogen on for 30minutes, and then turn it off.