FR2116664A6 - Monocrystal prodn - by zone melting - Google Patents

Monocrystal prodn - by zone melting

Info

Publication number
FR2116664A6
FR2116664A6 FR7043355A FR7043355A FR2116664A6 FR 2116664 A6 FR2116664 A6 FR 2116664A6 FR 7043355 A FR7043355 A FR 7043355A FR 7043355 A FR7043355 A FR 7043355A FR 2116664 A6 FR2116664 A6 FR 2116664A6
Authority
FR
France
Prior art keywords
temp
longitudinal
progressive
crystallisation
ingot
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
FR7043355A
Other languages
French (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.)
Radiotechnique Compelec RTC SA
Original Assignee
Radiotechnique Compelec RTC SA
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
Priority to FR68160A priority Critical patent/FR1494831A/en
Application filed by Radiotechnique Compelec RTC SA filed Critical Radiotechnique Compelec RTC SA
Priority to FR7043355A priority patent/FR2116664A6/en
Priority to FR7147003A priority patent/FR2166507A6/en
Application granted granted Critical
Publication of FR2116664A6 publication Critical patent/FR2116664A6/en
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
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C30B11/003—Heating or cooling of the melt or the crystallised material
    • 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
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • 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
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C30B11/006—Controlling or regulating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

Fabrication of a horizontal monocrystalline ingot as in parent patent, by progressive, controlled crystallisation longitudinally, while maintaining the isothermal solid/liquid interface convex towards the liquid phase, the convexity of the apparent curve of the interface being maintained constant by acting on a series of heat-energy supply devices enabling the transverse and longitudinal temps. to be programmed and, in partic., using these devices to bring about the progressive longitudinal displacement of the zone of temp. drop required for crystallisation, but incorporating the improvement whereby the longitudinal temp. gradient in the temp. drop zone extends over a smaller temp. range in the surface of areas of the ingot nearest its longitudinal axis than in its lateral or deeper regions.
FR7043355A 1966-07-05 1970-12-02 Monocrystal prodn - by zone melting Expired FR2116664A6 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR68160A FR1494831A (en) 1966-07-05 1966-07-05 Method of manufacturing a single crystal and implementation device
FR7043355A FR2116664A6 (en) 1966-07-05 1970-12-02 Monocrystal prodn - by zone melting
FR7147003A FR2166507A6 (en) 1966-07-05 1971-12-28 Monocrystalline semiconductor prodn plant - using horizontal zone refining

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR68160A FR1494831A (en) 1966-07-05 1966-07-05 Method of manufacturing a single crystal and implementation device
FR7043355A FR2116664A6 (en) 1966-07-05 1970-12-02 Monocrystal prodn - by zone melting
FR7147003A FR2166507A6 (en) 1966-07-05 1971-12-28 Monocrystalline semiconductor prodn plant - using horizontal zone refining

Publications (1)

Publication Number Publication Date
FR2116664A6 true FR2116664A6 (en) 1972-07-21

Family

ID=62495388

Family Applications (3)

Application Number Title Priority Date Filing Date
FR68160A Expired FR1494831A (en) 1966-07-05 1966-07-05 Method of manufacturing a single crystal and implementation device
FR7043355A Expired FR2116664A6 (en) 1966-07-05 1970-12-02 Monocrystal prodn - by zone melting
FR7147003A Expired FR2166507A6 (en) 1966-07-05 1971-12-28 Monocrystalline semiconductor prodn plant - using horizontal zone refining

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR68160A Expired FR1494831A (en) 1966-07-05 1966-07-05 Method of manufacturing a single crystal and implementation device

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7147003A Expired FR2166507A6 (en) 1966-07-05 1971-12-28 Monocrystalline semiconductor prodn plant - using horizontal zone refining

Country Status (1)

Country Link
FR (3) FR1494831A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2332388A1 (en) * 1973-06-26 1975-01-23 Philips Nv PROCESS FOR PRODUCING ROD-SHAPED SINGLE CRYSTALS FROM A MOLTEN STARTING MATERIAL, SINGLE CRYSTALLINE BODIES PRODUCED BY THIS PROCESS AND DEVICE FOR USE IN CARRYING OUT THIS PROCESS
US3984280A (en) * 1973-07-06 1976-10-05 U.S. Philips Corporation Making rod-shaped single crystals by horizontal solidifaction from a melt using transversally asymmetric trough-shaped resistance heater having transverse half turns

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300616A1 (en) * 1975-02-12 1976-09-10 Radiotechnique Compelec SEMICONDUCTOR COMPOUNDS SYNTHESIS PROCESS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2332388A1 (en) * 1973-06-26 1975-01-23 Philips Nv PROCESS FOR PRODUCING ROD-SHAPED SINGLE CRYSTALS FROM A MOLTEN STARTING MATERIAL, SINGLE CRYSTALLINE BODIES PRODUCED BY THIS PROCESS AND DEVICE FOR USE IN CARRYING OUT THIS PROCESS
US3984280A (en) * 1973-07-06 1976-10-05 U.S. Philips Corporation Making rod-shaped single crystals by horizontal solidifaction from a melt using transversally asymmetric trough-shaped resistance heater having transverse half turns

Also Published As

Publication number Publication date
FR2166507A6 (en) 1973-08-17
FR1494831A (en) 1967-09-15

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