GB993235A - A method of zone-by-zone melting a rod of material - Google Patents
A method of zone-by-zone melting a rod of materialInfo
- Publication number
- GB993235A GB993235A GB1696564A GB1696564A GB993235A GB 993235 A GB993235 A GB 993235A GB 1696564 A GB1696564 A GB 1696564A GB 1696564 A GB1696564 A GB 1696564A GB 993235 A GB993235 A GB 993235A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- zone
- melting
- voltage
- control
- 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
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
- C30B13/30—Stabilisation or shape controlling of the molten zone, e.g. by concentrators, by electromagnetic fields; Controlling the section of the crystal
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
993,235. Zone - melting. SIEMENS - SCHUCKERTWERKE A.G. April 23, 1964 [April 27, 1963], No. 16965/64. Heading BIS. In a method of zone-melting a rod of silicon by induction heating, the voltage across the heating coil 4 is maintained constant and an additional coil 10 is employed at the solidifying interface, the voltage across which is employed to control the diameter of said interface. The voltage across the heating coil may be maintained constant by control of the high-frequency generator or of the distance between the ends of the rod. The diameter of the liquid/solid interface may be controlled by control of the frequency of the current supplied to the heating coil or of the distance between the two ends of the rod. The lower rod (on the resolidification side) may be rotated. Operation may be in vacuo, hydrogen, or argon.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0084954 | 1963-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB993235A true GB993235A (en) | 1965-05-26 |
Family
ID=7512063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1696564A Expired GB993235A (en) | 1963-04-27 | 1964-04-23 | A method of zone-by-zone melting a rod of material |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE647137A (en) |
| CH (1) | CH407960A (en) |
| GB (1) | GB993235A (en) |
-
1964
- 1964-03-06 CH CH293564A patent/CH407960A/en unknown
- 1964-04-23 GB GB1696564A patent/GB993235A/en not_active Expired
- 1964-04-27 BE BE647137D patent/BE647137A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE647137A (en) | 1964-10-27 |
| CH407960A (en) | 1966-02-28 |
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