![Oxford Instruments OpAL Скачать руководство пользователя страница 226](http://html.mh-extra.com/html/oxford-instruments/opal/opal_system-manual_1664943226.webp)
Plasmalab and Ionfab
Oxford Instruments Plasma Technology
System Manual
1
Maintenance for all Turbo Pumps
Please note that premature failure of Turbomolecular Pumps can be caused by failing to
observe the following recommendations:
a)
Always follow the maintenance and operating instructions contained in the
manufacturers' manuals, copies of which are provided within the system
manuals. Note that with some types of pump the lubricant should be replaced
when the total running time reaches 500 hours.
b)
When corrosive process gases are being used always purge the turbo pump
with dry nitrogen during a processing run. If the process chamber is to be
vented adequate time must first be allowed for the process gases to be
pumped away.
c)
If corrosive process gases are used in a system with no gate valve between
the turbo pump and the process chamber and the system is to be left for
more than one hour with the turbo pump not running, proceed as follows:
1)
Turn off all the manual gas taps on the process gas lines. Also turn off
the gas taps on the process gas cylinders.
2)
Close the chamber door.
3)
Pump the process chamber and turbo pump down to approximately 1 x
10
-4
millibars.
4)
Vent the process chamber and turbo pump to atmospheric pressure with
dry nitrogen. Do not allow the chamber door to open.
5)
Repeat Steps 3 and 4 three times.
6)
Seal the process chamber and turbo pump.
d)
If corrosive process gases are used in a system with a gate valve between the
turbo pump and the process chamber and the system is to be left for more
than one hour with the turbo pump not running, proceed as follows:
1)
With the exception of the Argon and Nitrogen lines, turn off all the
manual gas taps on the process gas lines and also turn off the gas taps
on the process gas cylinders.
2)
Close the chamber door.
3)
Run a 'process' sequence (without any samples loaded) using only Argon
or Nitrogen as process gases for at least 10 minutes.
4)
Vent the process chamber and vent the turbo pump to atmospheric
pressure with dry nitrogen. Do not allow the chamber door to open.
5)
Pump the process chamber and the turbo pump down to 1 x 10
-4
millibars and then vent them with dry nitrogen.
6)
Repeat Step 5 three times.
7)
Seal the process chamber and the turbo pump.
Operation and Maintenance of Turbo Pumps
Issue 3: June 02
Page 2 of 4
Printed: 10-Jun-09, 6:52
Содержание OpAL
Страница 14: ......
Страница 229: ...OpAL Open Load Atomic Layer Thermal Deposition System Installation Data Typical OpAL thermal system Issue 3 October ...
Страница 299: ...bèìáéãÉåí j åì ä ää lfmq póëíÉãë RF Automatic Matching Unit Issue 6 September 2005 Page 1 of 20 ...
Страница 319: ...ALD Ozone Delivery System Ozone Delivery System for FlexAL and OpAL Systems Equipment Manual Issue 1 July 2010 ...