JPH03125077U - - Google Patents

Info

Publication number
JPH03125077U
JPH03125077U JP1990034874U JP3487490U JPH03125077U JP H03125077 U JPH03125077 U JP H03125077U JP 1990034874 U JP1990034874 U JP 1990034874U JP 3487490 U JP3487490 U JP 3487490U JP H03125077 U JPH03125077 U JP H03125077U
Authority
JP
Japan
Prior art keywords
single crystal
crystal column
diameter
line sensor
motor
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
JP1990034874U
Other languages
English (en)
Other versions
JP2518144Y2 (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 JP1990034874U priority Critical patent/JP2518144Y2/ja
Publication of JPH03125077U publication Critical patent/JPH03125077U/ja
Application granted granted Critical
Publication of JP2518144Y2 publication Critical patent/JP2518144Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Crystals, And After-Treatments Of Crystals (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)

Description

【図面の簡単な説明】
第1図は本考案を実施した直径測定装置の一例
についてその構成を示すブロツク図、第2図はそ
の機能を示すフローチヤート、第3図は直径測定
の概略図、第4図はピークレベルの変化を示すグ
ラフ、第5図は直径測定の原理を示す模式図であ
る。 10……ラインセンサー、12……絞り、20
……モータ、50……CPU、60……モータ制
御器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 融液から引き上げられる単結晶柱近傍のメニス
    カスに生じるフエージヨンリングをラインセンサ
    ーにて直径方向に走査し、その走査方向における
    センサー出力のピーク位置より単結晶柱の直径を
    測定する単結晶柱の直径測定装置であつて、ライ
    ンセンサーにモーターによつて開度調節される絞
    りを設け、ラインセンサーの出力ピークレベルが
    一定範囲内に維持されるように、前記モータに制
    御指令を送るモータ制御手段を具備せしめたこと
    を特徴とする単結晶柱の直径測定装置。
JP1990034874U 1990-03-30 1990-03-30 単結晶柱の直径測定装置 Expired - Lifetime JP2518144Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990034874U JP2518144Y2 (ja) 1990-03-30 1990-03-30 単結晶柱の直径測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990034874U JP2518144Y2 (ja) 1990-03-30 1990-03-30 単結晶柱の直径測定装置

Publications (2)

Publication Number Publication Date
JPH03125077U true JPH03125077U (ja) 1991-12-18
JP2518144Y2 JP2518144Y2 (ja) 1996-11-20

Family

ID=31539730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990034874U Expired - Lifetime JP2518144Y2 (ja) 1990-03-30 1990-03-30 単結晶柱の直径測定装置

Country Status (1)

Country Link
JP (1) JP2518144Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008050734A (ja) * 2006-08-28 2008-03-06 Sedaa Japan Kk 帽子

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008050734A (ja) * 2006-08-28 2008-03-06 Sedaa Japan Kk 帽子

Also Published As

Publication number Publication date
JP2518144Y2 (ja) 1996-11-20

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