JPH01121251U - - Google Patents

Info

Publication number
JPH01121251U
JPH01121251U JP1597288U JP1597288U JPH01121251U JP H01121251 U JPH01121251 U JP H01121251U JP 1597288 U JP1597288 U JP 1597288U JP 1597288 U JP1597288 U JP 1597288U JP H01121251 U JPH01121251 U JP H01121251U
Authority
JP
Japan
Prior art keywords
charged beam
chamber
column
exposure apparatus
beam exposure
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
JP1597288U
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 JP1597288U priority Critical patent/JPH01121251U/ja
Publication of JPH01121251U publication Critical patent/JPH01121251U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本考案の一実施例の斜視図、第2図は
従来の荷電ビーム露光装置のカラム倒れ込み振動
を説明するための断面図、第3図a,bは本考案
の実施例と従来の荷電ビーム露光装置におけるカ
ラムの倒れ込み振動減衰を示す特性図である。 11…カラム、12…チヤンバ、13…ステー
ジ、14…ベース、15…リブ、25…傾き角。

Claims (1)

    【実用新案登録請求の範囲】
  1. 荷電ビーム銃を備えたカラムと、該カラムが取
    付けられたチヤンバと、該チヤンバ内に設置され
    た可動ステージを備え、荷電ビームを用いて所望
    パターンを露光する荷電ビーム露光装置において
    、前記チヤンバ上面内側に前記カラム取付け部を
    囲い込むように井桁形のリブを設置したことを特
    徴とする荷電ビーム露光装置。
JP1597288U 1988-02-08 1988-02-08 Pending JPH01121251U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1597288U JPH01121251U (ja) 1988-02-08 1988-02-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1597288U JPH01121251U (ja) 1988-02-08 1988-02-08

Publications (1)

Publication Number Publication Date
JPH01121251U true JPH01121251U (ja) 1989-08-17

Family

ID=31228494

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1597288U Pending JPH01121251U (ja) 1988-02-08 1988-02-08

Country Status (1)

Country Link
JP (1) JPH01121251U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000230604A (ja) * 1999-02-12 2000-08-22 Jeol Ltd 防振用ベースプレート

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000230604A (ja) * 1999-02-12 2000-08-22 Jeol Ltd 防振用ベースプレート

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