JPH0245136U - - Google Patents

Info

Publication number
JPH0245136U
JPH0245136U JP12504488U JP12504488U JPH0245136U JP H0245136 U JPH0245136 U JP H0245136U JP 12504488 U JP12504488 U JP 12504488U JP 12504488 U JP12504488 U JP 12504488U JP H0245136 U JPH0245136 U JP H0245136U
Authority
JP
Japan
Prior art keywords
exhaust path
closing
fully
stop valve
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12504488U
Other languages
English (en)
Other versions
JPH0719554Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988125044U priority Critical patent/JPH0719554Y2/ja
Publication of JPH0245136U publication Critical patent/JPH0245136U/ja
Application granted granted Critical
Publication of JPH0719554Y2 publication Critical patent/JPH0719554Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Drying Of Semiconductors (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例による真空排気装置
を示す構成図、第2図aはバタフライ弁の駆動装
置の一例を示す図、第2図bは該駆動装置の一部
を詳細に示す図、第3図は従来の真空排気装置の
一例を示す構成図、第4図は従来の真空排気装置
の他の例を示す構成図である。 A……粗引きライン、B……本引きライン、1
……粗引きポンプ、3a……ストツプバルブ、4
……バタフライ弁。

Claims (1)

    【実用新案登録請求の範囲】
  1. 真空ポンプによりチエンバ内を真空排気する装
    置において、前記チエンバと粗引き用真空ポンプ
    との間の排気路に、排気路の全開、全閉を行うス
    トツプ弁と、閉塞が微小隙間を残す閉位置及び全
    開位置の2位置に制御可能なバタフライ弁とを直
    列に接続させるとともに、前記バタフライ弁を閉
    位置と全開位置に作動させる駆動手段を備えたこ
    とを特徴とする真空排気装置。
JP1988125044U 1988-09-24 1988-09-24 真空排気装置 Expired - Lifetime JPH0719554Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988125044U JPH0719554Y2 (ja) 1988-09-24 1988-09-24 真空排気装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988125044U JPH0719554Y2 (ja) 1988-09-24 1988-09-24 真空排気装置

Publications (2)

Publication Number Publication Date
JPH0245136U true JPH0245136U (ja) 1990-03-28
JPH0719554Y2 JPH0719554Y2 (ja) 1995-05-10

Family

ID=31375300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988125044U Expired - Lifetime JPH0719554Y2 (ja) 1988-09-24 1988-09-24 真空排気装置

Country Status (1)

Country Link
JP (1) JPH0719554Y2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5967619A (ja) * 1982-10-12 1984-04-17 Kokusai Electric Co Ltd 減圧容器を有する半導体製造装置の圧力制御装置
JPH026835A (ja) * 1988-06-24 1990-01-11 Fujitsu Ltd 制御機能付きバルブ及び減圧室の排気方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5967619A (ja) * 1982-10-12 1984-04-17 Kokusai Electric Co Ltd 減圧容器を有する半導体製造装置の圧力制御装置
JPH026835A (ja) * 1988-06-24 1990-01-11 Fujitsu Ltd 制御機能付きバルブ及び減圧室の排気方法

Also Published As

Publication number Publication date
JPH0719554Y2 (ja) 1995-05-10

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