FR2196198A1 - - Google Patents
Info
- Publication number
- FR2196198A1 FR2196198A1 FR7329665A FR7329665A FR2196198A1 FR 2196198 A1 FR2196198 A1 FR 2196198A1 FR 7329665 A FR7329665 A FR 7329665A FR 7329665 A FR7329665 A FR 7329665A FR 2196198 A1 FR2196198 A1 FR 2196198A1
- Authority
- FR
- France
- 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.)
- Granted
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)
- Crystals, And After-Treatments Of Crystals (AREA)
- Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722240301 DE2240301A1 (de) | 1972-08-16 | 1972-08-16 | Verfahren zum herstellen von halbleitereinkristallstaeben mit zur stabmitte abfallendem spezifischen widerstand |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2196198A1 true FR2196198A1 (de) | 1974-03-15 |
FR2196198B1 FR2196198B1 (de) | 1977-02-25 |
Family
ID=5853716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7329665A Expired FR2196198B1 (de) | 1972-08-16 | 1973-08-14 |
Country Status (7)
Country | Link |
---|---|
JP (2) | JPS4947075A (de) |
BE (1) | BE803673A (de) |
DE (1) | DE2240301A1 (de) |
FR (1) | FR2196198B1 (de) |
GB (1) | GB1374056A (de) |
IT (1) | IT993701B (de) |
NL (1) | NL7305059A (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56149971U (de) * | 1980-04-10 | 1981-11-11 | ||
JPS57100999A (en) * | 1980-12-15 | 1982-06-23 | Hitachi Chem Co Ltd | Heat treatment of single crystal of tungstic acid compound |
EP0059593B1 (de) * | 1981-03-02 | 1988-01-13 | Imperial Chemical Industries Plc | Verfahren und Apparat zur Ermittlung gasförmiger Verunreinigungen |
-
1972
- 1972-08-16 DE DE19722240301 patent/DE2240301A1/de active Pending
-
1973
- 1973-04-11 NL NL7305059A patent/NL7305059A/xx unknown
- 1973-04-17 GB GB1847173A patent/GB1374056A/en not_active Expired
- 1973-08-01 JP JP8668873A patent/JPS4947075A/ja active Pending
- 1973-08-08 IT IT2766373A patent/IT993701B/it active
- 1973-08-14 FR FR7329665A patent/FR2196198B1/fr not_active Expired
- 1973-08-16 BE BE134636A patent/BE803673A/xx unknown
-
1978
- 1978-02-22 JP JP2218078U patent/JPS53118462U/ja active Pending
Non-Patent Citations (1)
Title |
---|
NEANT * |
Also Published As
Publication number | Publication date |
---|---|
BE803673A (fr) | 1973-12-17 |
JPS4947075A (de) | 1974-05-07 |
NL7305059A (de) | 1974-02-19 |
IT993701B (it) | 1975-09-30 |
JPS53118462U (de) | 1978-09-20 |
GB1374056A (en) | 1974-11-13 |
FR2196198B1 (de) | 1977-02-25 |
DE2240301A1 (de) | 1974-02-28 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |