Processing apparatus for substrates

Adhesive bonding and miscellaneous chemical manufacture – Differential fluid etching apparatus – With microwave gas energizing means

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118719, C23C 1600

Patent

active

059806842

ABSTRACT:
For shortening the time for introducing an inactive gas, such as nitrogen gas, into a load lock chamber of a processing apparatus for substrates, a buffer tank 19 having a capacity larger than that of the load lock chamber 3 is provided in the path of a pipe for introducing the nitrogen gas into the load lock chamber 3 of the processing apparatus. During processing within the processing chamber 2, such as an ashing process and so on, the nitrogen gas is introduced into the load lock chamber 3 from the buffer tank 19 by operating a valve mechanism 21 to increase the pressure within the load lock chamber 3 up to atmospheric pressure.

REFERENCES:
patent: 4433951 (1984-02-01), Koch
patent: 4503807 (1985-03-01), Nakayama

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