GB1191166A - Zone Melting - Google Patents
Zone MeltingInfo
- Publication number
- GB1191166A GB1191166A GB43362/67A GB4336267A GB1191166A GB 1191166 A GB1191166 A GB 1191166A GB 43362/67 A GB43362/67 A GB 43362/67A GB 4336267 A GB4336267 A GB 4336267A GB 1191166 A GB1191166 A GB 1191166A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zone
- molten zone
- annular
- rod
- complete
- 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
- C30B13/16—Heating of the molten zone
- C30B13/20—Heating of the molten zone by induction, e.g. hot wire technique
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)
- Silicon Compounds (AREA)
- Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
Abstract
1,191,166. Floating zone-melting. SIEMENS A.G. 22 Sept., 1967 [24 Sept., 1966], No. 43362/67. Heading BIS. A rod of silicon is zone-melted by the successive passage of an annular and a complete molten zone. The annular molten zone has a depth of one-fifth to two-thirds of the radius of the rod. The two molten zones may be passed separately in the same or opposite directions or simultaneously in the same direction at a distance apart of 4-7 cm. The complete molten zone may pass upwards or downwards. As shown, an incandescent zone is passed from a carbon element 11 to a seed 13, whereafter an annular molten zone 17 followed by a complete molten zone 18 is passed from the seed in the opposite direction by means of surrounding induction coils 16 and 15. In a modification, coil 15 is dispensed with and the power to coil 16 is increased after the complete passage of the annular molten zone to form the complete molten zone. In another embodiment (Figs. 2 and 3), the annular molten zone is formed by rotating the rod and heating by means of an induction loop situated at one side of the rod.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0106092 | 1966-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1191166A true GB1191166A (en) | 1970-05-06 |
Family
ID=7527124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB43362/67A Expired GB1191166A (en) | 1966-09-24 | 1967-09-22 | Zone Melting |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3585008A (en) |
| BE (1) | BE704005A (en) |
| DE (1) | DE1519903A1 (en) |
| DK (1) | DK136805B (en) |
| GB (1) | GB1191166A (en) |
| NL (1) | NL6710709A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1542868A (en) * | 1975-11-14 | 1979-03-28 | Siemens Ag | Production of phosphorus-doped monocrystalline silicon rods |
| US5207863A (en) * | 1990-04-06 | 1993-05-04 | Canon Kabushiki Kaisha | Crystal growth method and crystalline article obtained by said method |
-
1966
- 1966-09-24 DE DE19661519903 patent/DE1519903A1/en active Pending
-
1967
- 1967-08-03 NL NL6710709A patent/NL6710709A/xx unknown
- 1967-08-07 DK DK400567AA patent/DK136805B/en unknown
- 1967-09-18 BE BE704005D patent/BE704005A/xx unknown
- 1967-09-22 GB GB43362/67A patent/GB1191166A/en not_active Expired
- 1967-09-22 US US669968A patent/US3585008A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1519903A1 (en) | 1970-02-12 |
| DK136805C (en) | 1978-05-16 |
| DK136805B (en) | 1977-11-28 |
| US3585008A (en) | 1971-06-15 |
| NL6710709A (en) | 1968-03-25 |
| BE704005A (en) | 1968-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |