IT1229561B - PROCEDURE AND DEVICE FOR THE DRAFT OF MONOCRYSTALS. - Google Patents

PROCEDURE AND DEVICE FOR THE DRAFT OF MONOCRYSTALS.

Info

Publication number
IT1229561B
IT1229561B IT8919640A IT1964089A IT1229561B IT 1229561 B IT1229561 B IT 1229561B IT 8919640 A IT8919640 A IT 8919640A IT 1964089 A IT1964089 A IT 1964089A IT 1229561 B IT1229561 B IT 1229561B
Authority
IT
Italy
Prior art keywords
monocrystals
draft
procedure
Prior art date
Application number
IT8919640A
Other languages
Italian (it)
Other versions
IT8919640A0 (en
Inventor
Dieter Drechsel
Original Assignee
Leybold Ag
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 Ag filed Critical Leybold Ag
Publication of IT8919640A0 publication Critical patent/IT8919640A0/en
Application granted granted Critical
Publication of IT1229561B publication Critical patent/IT1229561B/en

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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric 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)
  • Automation & Control Theory (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
IT8919640A 1988-03-03 1989-03-03 PROCEDURE AND DEVICE FOR THE DRAFT OF MONOCRYSTALS. IT1229561B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3806917 1988-03-03

Publications (2)

Publication Number Publication Date
IT8919640A0 IT8919640A0 (en) 1989-03-03
IT1229561B true IT1229561B (en) 1991-09-04

Family

ID=6348748

Family Applications (2)

Application Number Title Priority Date Filing Date
IT8823017A IT8823017A0 (en) 1988-03-03 1988-12-20 PROCEDURE AND DEVICE FOR THE DRAWING OF SINGLE CRYSTALS
IT8919640A IT1229561B (en) 1988-03-03 1989-03-03 PROCEDURE AND DEVICE FOR THE DRAFT OF MONOCRYSTALS.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT8823017A IT8823017A0 (en) 1988-03-03 1988-12-20 PROCEDURE AND DEVICE FOR THE DRAWING OF SINGLE CRYSTALS

Country Status (4)

Country Link
JP (1) JP2740239B2 (en)
DE (1) DE3904858C2 (en)
FI (1) FI87660C (en)
IT (2) IT8823017A0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662803B1 (en) * 1990-05-31 1992-09-04 Aerospatiale CRISTALLOGENESIS DEVICE AND INSTALLATION PROVIDED WITH MEANS OF OBSERVATION.
DE69133236T2 (en) * 1991-04-26 2004-02-26 Mitsubishi Materials Corp. Single crystal growing method
DE4123336A1 (en) * 1991-07-15 1993-01-21 Leybold Ag CRYSTAL DRAWING METHOD AND DEVICE FOR CARRYING IT OUT
DE4301072B4 (en) * 1993-01-16 2006-08-24 Crystal Growing Systems Gmbh Process for pulling single crystals from a melt
DE10120730B4 (en) 2001-04-27 2006-08-24 Schott Ag Method and device for measuring the phase boundary
CN114675676B (en) * 2022-03-15 2024-10-11 东莞南玻太阳能玻璃有限公司 Liquid level depth adjusting method and device, electronic equipment and storage medium

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740563A (en) * 1971-06-25 1973-06-19 Monsanto Co Electroptical system and method for sensing and controlling the diameter and melt level of pulled crystals
DE2149093C3 (en) * 1971-10-01 1975-07-24 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Device for growing single crystals by pulling them from a melt
JPS5130528Y2 (en) * 1972-03-21 1976-07-31
JPS5013862U (en) * 1973-06-04 1975-02-13
DE2337169C2 (en) * 1973-07-21 1975-06-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method for pulling single crystal rods
BE872578A (en) * 1978-12-06 1979-03-30 Centre Rech Metallurgique DEVICE TO CONTROL THE SURFACE OF THE LOAD OF A TANK OVEN
DE2903061A1 (en) * 1979-01-26 1980-08-07 Heliotronic Gmbh METHOD FOR PRODUCING LARGE CRYSTALLINE, PREFERRED ORIENTED SILICON FILMS
US4282184A (en) * 1979-10-09 1981-08-04 Siltec Corporation Continuous replenishment of molten semiconductor in a Czochralski-process, single-crystal-growing furnace
US4410494A (en) * 1981-04-13 1983-10-18 Siltec Corporation Apparatus for controlling flow of molten material between crystal growth furnaces and a replenishment crucible
US4454096A (en) * 1981-06-15 1984-06-12 Siltec Corporation Crystal growth furnace recharge
US4508970A (en) * 1982-07-15 1985-04-02 Motorola, Inc. Melt level sensing system and method
DE3407456A1 (en) * 1984-02-29 1985-09-05 Werner & Mertz Gmbh, 6500 Mainz COMBINED CLEANING / BLEACHING AGENT FOR THE TREATMENT OF THE RINSE WATER OF TOILET MACHINES AND THEIR USE
CA1261715A (en) * 1984-07-06 1989-09-26 General Signal Corporation Apparatus and process for growing monocrystals of semiconductor materials from shallow crucibles by czochralski technique
JPS6153190A (en) * 1984-08-17 1986-03-17 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Crystal bool growth
JPS6186493A (en) * 1984-10-04 1986-05-01 Toshiba Mach Co Ltd Semiconductor crystal pulling device
DD253437A1 (en) * 1986-10-22 1988-01-20 Freiberg Spurenmetalle Veb METHOD AND ARRANGEMENT FOR MONITORING AND REGULATING CRYSTAL CROPS PROCESSES

Also Published As

Publication number Publication date
DE3904858A1 (en) 1989-09-14
FI87660B (en) 1992-10-30
FI885595A0 (en) 1988-12-01
DE3904858C2 (en) 2001-06-07
JP2740239B2 (en) 1998-04-15
IT8823017A0 (en) 1988-12-20
FI87660C (en) 1993-02-10
IT8919640A0 (en) 1989-03-03
FI885595A (en) 1989-09-04
JPH01317187A (en) 1989-12-21

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970929