Gas treatment apparatus and cleaning method thereof
Abstract
Abstract Translated from Japanese (57)【要約】 【目的】 ガス処理例えばCVD時に生成された反応生 成物が処理室内に付着すると汚染源になるため、これを 容易に洗浄すること。 【構成】 気密構造の処理室1の天井部に洗浄液の注入 口4及び通気口5を設けると共に、処理室1の底面に排 出口6を設け、これらに夫々バルブV4〜V6が介装さ れた洗浄液注入管41、通気管51及び洗浄液排出管6 1を接続する。CVD処理後にバルブV4及びバルブV 5を開いて洗浄液例えば純水を処理室1内に注入して満 たし、これにより反応生成物例えばNH 4 Clを加水分 解する。次いでバルブ6を開いて洗浄液を排出した後、 ヒータ7をオンにして処理室1内を加熱しながら、真空 ポンプ51により処理室1内を真空排気する。 (57) [Summary] [Objective] The reaction product produced during gas processing, such as CVD, becomes a pollution source when it adheres to the processing chamber, so it should be easily cleaned. [Structure] An inlet 4 and a vent 5 for a cleaning liquid are provided on a ceiling portion of an airtight processing chamber 1, and an outlet 6 is provided on a bottom surface of the processing chamber 1, and valves V4 to V6 are provided in these, respectively. Cleaning liquid injection pipe 41, ventilation pipe 51 and cleaning liquid discharge pipe 6 Connect 1. Valve V4 and valve V after CVD processing 5 is opened to inject a cleaning liquid, for example, pure water, into the processing chamber 1 to fill it, thereby hydrolyzing a reaction product, for example, NH 4 Cl. Next, after opening the valve 6 to discharge the cleaning liquid, While the heater 7 is turned on to heat the inside of the processing chamber 1, the inside of the processing chamber 1 is evacuated by the vacuum pump 51.
Inventors
- 👤 Takayuki Oba
- 👤 隆之 大場
- 👤 Hisaya Suzuki
- 👤 寿哉 鈴木
- 👤 Masashi Murakami
- 👤 誠志 村上
Bibliographic Details
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