JPS62199947U - - Google Patents

Info

Publication number
JPS62199947U
JPS62199947U JP8951986U JP8951986U JPS62199947U JP S62199947 U JPS62199947 U JP S62199947U JP 8951986 U JP8951986 U JP 8951986U JP 8951986 U JP8951986 U JP 8951986U JP S62199947 U JPS62199947 U JP S62199947U
Authority
JP
Japan
Prior art keywords
tank
chemical
return port
circulation system
utility
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.)
Pending
Application number
JP8951986U
Other languages
English (en)
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 JP8951986U priority Critical patent/JPS62199947U/ja
Publication of JPS62199947U publication Critical patent/JPS62199947U/ja
Pending legal-status Critical Current

Links

Landscapes

  • ing And Chemical Polishing (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例の断面図、第2図は
その平面図、第3図は従来の薬液循環システムを
有するエツチング槽の一例である。 1……エツチング槽、2……薬液循環用ポンプ
、3……フイルター、4……薬液戻り口、5……
ウエーハ、6……ポンプ圧送による戻り口からの
薬液の流れ、7……薬液のオーバーフロー。

Claims (1)

    【実用新案登録請求の範囲】
  1. 薬液循環システムを有するエツチング槽におい
    て、槽内周囲の複数箇所に薬液の戻り口を設けた
    ことを特徴とする半導体エツチング槽。
JP8951986U 1986-06-11 1986-06-11 Pending JPS62199947U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8951986U JPS62199947U (ja) 1986-06-11 1986-06-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8951986U JPS62199947U (ja) 1986-06-11 1986-06-11

Publications (1)

Publication Number Publication Date
JPS62199947U true JPS62199947U (ja) 1987-12-19

Family

ID=30948574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8951986U Pending JPS62199947U (ja) 1986-06-11 1986-06-11

Country Status (1)

Country Link
JP (1) JPS62199947U (ja)

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