[go: up one dir, main page]

FR2458792B1 - Procede et dispositif de mesure du diametre de monocristaux pendant le tirage en bain fondu - Google Patents

Procede et dispositif de mesure du diametre de monocristaux pendant le tirage en bain fondu

Info

Publication number
FR2458792B1
FR2458792B1 FR8012650A FR8012650A FR2458792B1 FR 2458792 B1 FR2458792 B1 FR 2458792B1 FR 8012650 A FR8012650 A FR 8012650A FR 8012650 A FR8012650 A FR 8012650A FR 2458792 B1 FR2458792 B1 FR 2458792B1
Authority
FR
France
Prior art keywords
measuring
diameter
during molding
single crystals
crystals during
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.)
Expired
Application number
FR8012650A
Other languages
English (en)
Other versions
FR2458792A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Balzers und Leybold Deutschland Holding AG
Original Assignee
Leybold Heraeus GmbH
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 by Leybold Heraeus GmbH filed Critical Leybold Heraeus GmbH
Publication of FR2458792A1 publication Critical patent/FR2458792A1/fr
Application granted granted Critical
Publication of FR2458792B1 publication Critical patent/FR2458792B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
    • C30B15/20—Controlling or regulating
    • C30B15/22—Stabilisation or shape controlling of the molten zone near the pulled crystal; Controlling the section of the crystal
    • C30B15/26—Stabilisation or shape controlling of the molten zone near the pulled crystal; Controlling the section of the crystal using television detectors; using photo or X-ray detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G01B11/10—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
    • G01B11/105—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving using photoelectric detection means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Length Measuring Devices By Optical Means (AREA)
FR8012650A 1979-06-08 1980-06-06 Procede et dispositif de mesure du diametre de monocristaux pendant le tirage en bain fondu Expired FR2458792B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792923240 DE2923240A1 (de) 1979-06-08 1979-06-08 Messverfahren und messanordnung fuer den durchmesser von einkristallen beim tiegelziehen

Publications (2)

Publication Number Publication Date
FR2458792A1 FR2458792A1 (fr) 1981-01-02
FR2458792B1 true FR2458792B1 (fr) 1985-08-23

Family

ID=6072772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8012650A Expired FR2458792B1 (fr) 1979-06-08 1980-06-06 Procede et dispositif de mesure du diametre de monocristaux pendant le tirage en bain fondu

Country Status (6)

Country Link
US (1) US4832496A (fr)
JP (1) JPS55166004A (fr)
BE (1) BE883645A (fr)
DE (1) DE2923240A1 (fr)
FR (1) FR2458792B1 (fr)
GB (1) GB2054137B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667231A (en) * 1979-09-07 1987-05-19 Diffracto Ltd. Electro-optical part inspection in the presence of contamination and surface finish variation
SE427584B (sv) * 1981-01-20 1983-04-18 Asea Ab Kombinerad hastighets- och dimensionsgivare
FR2588654A1 (fr) * 1985-10-10 1987-04-17 Dujardin Montbard Somenor Procede de controle dimensionnel au defile de barres et dispositif pour la mise en oeuvre de ce procede
DE3631187A1 (de) * 1986-09-12 1988-03-24 Schoeffel Manfred Dipl Ing Verfahren und vorrichtung zum bestimmen des abstandes von markierungen auf messobjekten
JPH0649631B2 (ja) * 1986-10-29 1994-06-29 信越半導体株式会社 結晶径測定装置
JPS6483595A (en) * 1987-09-25 1989-03-29 Shinetsu Handotai Kk Device for measuring crystal diameter
DE4001480A1 (de) * 1990-01-19 1991-07-25 Rheydt Kabelwerk Ag Automatische einstellvorrichtung fuer die oeffnung einer blende
JP2601930B2 (ja) * 1990-03-29 1997-04-23 信越半導体株式会社 単結晶ネツク部直径制御方法及び装置
DE4301072B4 (de) * 1993-01-16 2006-08-24 Crystal Growing Systems Gmbh Verfahren zum Ziehen von Einkristallen aus einer Schmelze
US5568260A (en) * 1995-03-31 1996-10-22 General Electric Company Precision non-contact measurement system for curved workpieces
US5784168A (en) * 1995-07-03 1998-07-21 U.S. Philips Corporation Position detection system for an object with at least five degrees of freedom
DE19529485A1 (de) * 1995-08-10 1997-02-13 Wacker Siltronic Halbleitermat Verfahren und Vorrichtung zur Bestimmung des Durchmessers eines wachsenden Einkristalls
US5656078A (en) * 1995-11-14 1997-08-12 Memc Electronic Materials, Inc. Non-distorting video camera for use with a system for controlling growth of a silicon crystal
US5918196A (en) * 1996-11-29 1999-06-29 Cognex Corporation Vision system for analyzing solid-of-revolution radius profile
US6175652B1 (en) 1997-12-31 2001-01-16 Cognex Corporation Machine vision system for analyzing features based on multiple object images
US6175644B1 (en) 1998-05-01 2001-01-16 Cognex Corporation Machine vision system for object feature analysis and validation based on multiple object images
CN113884441B (zh) * 2021-09-30 2023-08-25 浙江师范大学 一种凸轮轴表面瑕疵自动检测设备及检测方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH417542A (de) * 1961-12-07 1966-07-31 Siemens Ag Anordnung zur Durchführung von Zonenschmelzprozessen an Halbleiterstäben
BE631568A (fr) * 1962-04-27
US3493770A (en) * 1966-03-01 1970-02-03 Ibm Radiation sensitive control system for crystal growing apparatus
GB1110146A (en) * 1966-05-20 1968-04-18 Dow Corning Apparatus for producing semiconductor crystals
US3718757A (en) * 1970-12-29 1973-02-27 Ibm Temperature monitoring
DE2127751C3 (de) * 1971-06-04 1974-08-01 Exatest Messtechnik Gmbh, 5090 Leverkusen Verfahren und Anordnung zur Ermittlung des Durchmessers eines Gegenstandes runder Querschnittsform mittels periodischer fotoelektrischer Abtastung
US3812483A (en) * 1972-05-26 1974-05-21 Us Army Point source discriminator thermal alarm
US3806253A (en) * 1972-12-13 1974-04-23 Weyerhaeuser Co Sweep measuring scheme
US3886359A (en) * 1974-01-04 1975-05-27 Texas Instruments Inc Time interval compression address sequentially
US4207293A (en) * 1974-06-14 1980-06-10 Varian Associates, Inc. Circumferential error signal apparatus for crystal rod pulling
US3958129A (en) * 1974-08-05 1976-05-18 Motorola, Inc. Automatic crystal diameter control for growth of semiconductor crystals
JPS5390981A (en) * 1977-01-20 1978-08-10 Yokohama Rubber Co Ltd Tension testing apparatus
US4112469A (en) * 1977-04-21 1978-09-05 The Mead Corporation Jet drop copying apparatus
US4188544A (en) * 1977-08-22 1980-02-12 Weyerhaeuser Company Method and apparatus for automatically processing a workpiece employing calibrated scanning
US4290835A (en) * 1978-06-14 1981-09-22 Mobil Tyco Solar Energy Corporation Method for crystal growth control
US4242589A (en) * 1979-01-15 1980-12-30 Mobil Tyco Solar Energy Corporation Apparatus for monitoring crystal growth
US4239583A (en) * 1979-06-07 1980-12-16 Mobil Tyco Solar Energy Corporation Method and apparatus for crystal growth control

Also Published As

Publication number Publication date
US4832496A (en) 1989-05-23
GB2054137B (en) 1983-03-16
JPS55166004A (en) 1980-12-24
FR2458792A1 (fr) 1981-01-02
DE2923240A1 (de) 1980-12-18
BE883645A (fr) 1980-10-01
GB2054137A (en) 1981-02-11
DE2923240C2 (fr) 1988-06-23

Similar Documents

Publication Publication Date Title
FR2458792B1 (fr) Procede et dispositif de mesure du diametre de monocristaux pendant le tirage en bain fondu
FR2302514A1 (fr) Procede et dispositif pour l'essai de thermocouples
BE868016A (fr) Procede et dispositif pour executer des diagnostics cliniques in vitro
GB1545991A (en) Method and apparatus for the measurement of antigens and/or antibodies
BE866844A (fr) Procede et dispositif pour le prelevement de matiere cervicale
BE861025A (fr) Appareil et procede de mesure de l'enthalpie
FR2297936A1 (fr) Procede et dispositif pour automati
FR2314050A1 (fr) Moule pour pneumatique et procede et dispositif de manipulation de ce moule
JPS5643559A (en) Method of and apparatus for measuring flow velocity
BE880666A (fr) Dispositif et procede pour mesurer l'emissivite d'un produit
DD136070A1 (de) Vorrichtung zur gleichzeitigen fluchtungs-und richtungsmessung
BE877545A (fr) Procede et dispositif pour le prelevement de fourrage comprime
NO151514C (no) Fremgangsmaate og innretning for overvaakning av endringshastigheten av et signal
BE860177A (fr) Procede et dispositif de mesure de caracteristiques de matieres extrudables
FR2304894A1 (fr) Dispositif de mesure de non cylindricite et procede pour son reglage
BE883097A (fr) Procede et dispositif pour la preparation d'oxydes azotiques
FR2292237A1 (fr) Procede et dispositif de mesure de la duree de periode ou de la frequence d'un signal
JPS53121648A (en) Detecting method of ferromagnetic substances and apparatus for carrying out the method
FR2299623A1 (fr) Procede de mesure de la longueur d'elements allonges et dispositif pour l'application de ce proce
FR1322971A (fr) Procédé et dispositif de mesure continue de la perméabilité sur les chaînes d'agglomération
BE881650A (fr) Dispositif pour examens gynecologiques et rectoscopiques
BE824959A (fr) Procede et dispositif de mesure d'epaisseur
BE760394A (fr) Procede et dispositif de mesure de l'epaisseur d'un revetement
FR2307255A1 (fr) Source de rayonnement de reference pour dispositif de mesure du rayonnement d'un objet
BE866503A (fr) Procede et dispositif d'ultrafiltration de liquides

Legal Events

Date Code Title Description
ST Notification of lapse