发明名称 |
DEVICE FOR DIVIDING AND FEEDING GAS FLOW FROM FLOW RATE- REGULATING DEVICE-EQUIPPED GAS-FEEDING EQUIPMENT TO CHAMBER |
摘要 |
<p>The present invention is for supplying a specified quantity Q of processing gas while dividing at a desired flow rate ratio Q 1 /Q 2 accurately and quickly from a gas supply facility equipped with a flow controller into a chamber. With the present invention, a total quantity Q=Q 1 +Q 2 of gas while dividing is supplied into a chamber C at a desired flow rate Q 1 and Q 2 through shower plates 3 and 4 fixed to the ends of branch supply lines GL 1 and GL 2 by providing open/close valves OV 1 and OV 2 with a plurality of branch supply lines GL 1 and GL 2 respectively to supply a specified quantity Q of gas G from a gas supply facility 1 equipped with a flow controller QCS into a chamber, and by utilizing a bypass line BL 1 on the downstream side of the afore-mentioned open/close valve OV 1 and branched from GL 1 , a bypass line BL 2 on the downstream side of the open/close valve OV 2 and branched from GL 2 , a pressure type division quantity controller FV connected to the bypass line BL 1 and the bypass line BL 2 , a pressure sensor PS 1 to measure pressure inside the branch supply line GL 1 , and a pressure sensor PS 2 to measure pressure inside the branch supply line GL 2 .</p> |
申请公布号 |
EP1637950(A1) |
申请公布日期 |
2006.03.22 |
申请号 |
EP20040745747 |
申请日期 |
2004.06.10 |
申请人 |
FUJIKIN INCORPORATED;TOKYO ELECTRON LIMITED |
发明人 |
SUGIYAMA, KAZUHIKO;IKEDA, NOBUKAZU;NISHINO, KOUJI;DOHI, RYOUSUKE;UENOYAMA, TOYOMI |
分类号 |
F17D1/04;G05D7/06;H01L21/02;H01L21/31;(IPC1-7):G05D7/06 |
主分类号 |
F17D1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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