FR2192871B1 - - Google Patents
Info
- Publication number
- FR2192871B1 FR2192871B1 FR7325561A FR7325561A FR2192871B1 FR 2192871 B1 FR2192871 B1 FR 2192871B1 FR 7325561 A FR7325561 A FR 7325561A FR 7325561 A FR7325561 A FR 7325561A FR 2192871 B1 FR2192871 B1 FR 2192871B1
- 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.)
- 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)
- 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 |
|---|---|---|---|
| DE19722234515 DE2234515C3 (de) | 1972-07-13 | 1972-07-13 | Verfahren zum Herstellen von (111)-orientierten Halbleitereinkristallstäben mit zur Stabmitte abfallendem spezifischem Widerstand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2192871A1 FR2192871A1 (US20100223739A1-20100909-C00005.png) | 1974-02-15 |
| FR2192871B1 true FR2192871B1 (US20100223739A1-20100909-C00005.png) | 1977-02-18 |
Family
ID=5850583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7325561A Expired FR2192871B1 (US20100223739A1-20100909-C00005.png) | 1972-07-13 | 1973-07-12 |
Country Status (8)
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD66412A (US20100223739A1-20100909-C00005.png) * |
-
1972
- 1972-07-13 DE DE19722234515 patent/DE2234515C3/de not_active Expired
-
1973
- 1973-03-26 GB GB1441373A patent/GB1375133A/en not_active Expired
- 1973-04-04 NL NL7304672A patent/NL7304672A/xx unknown
- 1973-07-11 IT IT2645173A patent/IT992610B/it active
- 1973-07-12 FR FR7325561A patent/FR2192871B1/fr not_active Expired
- 1973-07-12 DK DK387673A patent/DK143456C/da not_active IP Right Cessation
- 1973-07-12 CA CA176,247A patent/CA1009548A/en not_active Expired
- 1973-07-13 BE BE133465A patent/BE802325A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA1009548A (en) | 1977-05-03 |
| NL7304672A (US20100223739A1-20100909-C00005.png) | 1974-01-15 |
| IT992610B (it) | 1975-09-30 |
| GB1375133A (US20100223739A1-20100909-C00005.png) | 1974-11-27 |
| DE2234515A1 (de) | 1974-01-24 |
| BE802325A (fr) | 1973-11-05 |
| DE2234515C3 (de) | 1981-12-03 |
| DK143456B (da) | 1981-08-24 |
| DE2234515B2 (de) | 1980-07-31 |
| FR2192871A1 (US20100223739A1-20100909-C00005.png) | 1974-02-15 |
| DK143456C (da) | 1981-12-28 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |