FR2176701A1 - Zone smelting control system - for rod material refining, esp of semiconductors - Google Patents

Zone smelting control system - for rod material refining, esp of semiconductors

Info

Publication number
FR2176701A1
FR2176701A1 FR7306928A FR7306928A FR2176701A1 FR 2176701 A1 FR2176701 A1 FR 2176701A1 FR 7306928 A FR7306928 A FR 7306928A FR 7306928 A FR7306928 A FR 7306928A FR 2176701 A1 FR2176701 A1 FR 2176701A1
Authority
FR
France
Prior art keywords
fed
esp
semiconductors
control system
rod material
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.)
Withdrawn
Application number
FR7306928A
Other languages
English (en)
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.)
STEREMAT VEB
Original Assignee
STEREMAT VEB
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 STEREMAT VEB filed Critical STEREMAT VEB
Publication of FR2176701A1 publication Critical patent/FR2176701A1/fr
Withdrawn legal-status Critical Current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
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/28—Controlling or regulating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • General Induction Heating (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
FR7306928A 1972-03-21 1973-02-27 Zone smelting control system - for rod material refining, esp of semiconductors Withdrawn FR2176701A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD16167672A DD100636A1 (enrdf_load_stackoverflow) 1972-03-21 1972-03-21

Publications (1)

Publication Number Publication Date
FR2176701A1 true FR2176701A1 (en) 1973-11-02

Family

ID=5485821

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7306928A Withdrawn FR2176701A1 (en) 1972-03-21 1973-02-27 Zone smelting control system - for rod material refining, esp of semiconductors

Country Status (5)

Country Link
DD (1) DD100636A1 (enrdf_load_stackoverflow)
DE (1) DE2255572A1 (enrdf_load_stackoverflow)
FR (1) FR2176701A1 (enrdf_load_stackoverflow)
RO (1) RO69604A2 (enrdf_load_stackoverflow)
SU (1) SU649299A3 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
SU649299A3 (ru) 1979-02-25
RO69604A2 (ro) 1981-05-30
DE2255572A1 (de) 1973-10-04
DD100636A1 (enrdf_load_stackoverflow) 1973-10-05

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Legal Events

Date Code Title Description
ST Notification of lapse