Wednesday, November 7, 2018

11/07/2018 - Removed TMGa bubbler (P-2292-21) and connected TMGa bubbler (1000005536) which weighs 1530.5g.  Also weighed TMAl (M5900) at 1569.1g and TMIn (S-21123) at 1937.7g.

Thursday, November 1, 2018

11/01/2018 - Installed new rotary feed through.  Using 4 clamps to secure feed though to KF adapter.

Friday, September 7, 2018

9/7/18 - PH3 cylinder was replaced for new one.  New pressure reads ~550 psi

Friday, August 17, 2018

8/17/18 - Vacuum Pump was reattached to MOCVD system after getting it back from being fixed. It was filled with fresh oil. Filters for the purifier were replaced with new ones several weeks earlier. 

Thursday, April 26, 2018


-Flushed TMAl, TMIn, Se, AsH3, and PH3 lines with H2 a minimum of 5 times each.

- Baked manifold overnight for about 19hrs at 68°C.

Thursday, April 19, 2018


Baked manifold over night for ~17hrs with 50 sccm N2 at ~68°C

Thursday, October 12, 2017

- Aluminum plug was made and placed in sight glass hole of oil trap.

- Aluminum plug was push out of oil trap by built up pressure.
- Clamp was used to secure Al plug in place while emptying H2 lines.

- Ran air through oil trap and scrubber.  Measured a 40psi pressure build up that would slowly decrease when air supply was stopped.
- Removed scrubber, emptied charcoal and measured ~3psi pressure build up while pushing air through the empty scrubber.
- Cleaned inside of scrubber with IPA and let dry overnight.

- Filled scrubber with new charcoal and measured ~10psi pressure build up when pushing air through it.
- Reconnected scrubber and oil trap still have clamp on oil trap plug, since we could not remove it.  However, oil trap was pressurized to ~70psi and the Al plug did not move.