FR2357302B1 - - Google Patents
Info
- Publication number
- FR2357302B1 FR2357302B1 FR7620442A FR7620442A FR2357302B1 FR 2357302 B1 FR2357302 B1 FR 2357302B1 FR 7620442 A FR7620442 A FR 7620442A FR 7620442 A FR7620442 A FR 7620442A FR 2357302 B1 FR2357302 B1 FR 2357302B1
- 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
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/32—Seed holders, e.g. chucks
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/121—Control of position or direction using feedback using synchromachines (selsyns)
- G05D3/122—Control of position or direction using feedback using synchromachines (selsyns) without modulation
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1418—Control of position or direction using feedback using an analogue comparing device with ac amplifier chain
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1436—Control of position or direction using feedback using an analogue comparing device with fine or coarse devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7620442A FR2357302A1 (fr) | 1976-07-05 | 1976-07-05 | Dispositif de tirage d'un monocristal a partir d'un bain en fusion |
| BE1008189A BE855611A (fr) | 1976-07-05 | 1977-06-13 | Dispositif de tirage d'un monocristal a partir d'un bain en fusion |
| GB24591/77A GB1533509A (en) | 1976-07-05 | 1977-06-13 | Device for pulling a monocrystal from a melt |
| IT24704/77A IT1080678B (it) | 1976-07-05 | 1977-06-15 | Dispositivo di estrazione di un monocristallo a partiere da un bagno in fusione |
| NLAANVRAGE7706926,A NL187170C (nl) | 1976-07-05 | 1977-06-22 | Inrichting voor het trekken van een eenkristal uit een gesmolten bad. |
| DE2729176A DE2729176C2 (de) | 1976-07-05 | 1977-06-28 | Vorrichtung zum Ziehen eines Einkristalls aus einer Schmelze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7620442A FR2357302A1 (fr) | 1976-07-05 | 1976-07-05 | Dispositif de tirage d'un monocristal a partir d'un bain en fusion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2357302A1 FR2357302A1 (fr) | 1978-02-03 |
| FR2357302B1 true FR2357302B1 (US07321065-20080122-C00020.png) | 1978-12-15 |
Family
ID=9175230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7620442A Granted FR2357302A1 (fr) | 1976-07-05 | 1976-07-05 | Dispositif de tirage d'un monocristal a partir d'un bain en fusion |
Country Status (6)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5102933A (en) * | 1990-05-22 | 1992-04-07 | Witco Corporation | Polyvinylchloride composition and stabilizers therefor |
| DE19758945B3 (de) * | 1996-09-03 | 2012-09-06 | Sumitomo Mitsubishi Silicon Corp. | Vorrichtung zum Ziehen von Einkristallen |
| CN105541308B (zh) * | 2016-01-23 | 2018-06-01 | 胡海波 | 一种高增透蓝宝石晶棒制造设备及制造工艺 |
-
1976
- 1976-07-05 FR FR7620442A patent/FR2357302A1/fr active Granted
-
1977
- 1977-06-13 GB GB24591/77A patent/GB1533509A/en not_active Expired
- 1977-06-13 BE BE1008189A patent/BE855611A/xx not_active IP Right Cessation
- 1977-06-15 IT IT24704/77A patent/IT1080678B/it active
- 1977-06-22 NL NLAANVRAGE7706926,A patent/NL187170C/xx not_active IP Right Cessation
- 1977-06-28 DE DE2729176A patent/DE2729176C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL187170C (nl) | 1991-06-17 |
| DE2729176A1 (de) | 1978-01-19 |
| NL7706926A (nl) | 1978-01-09 |
| DE2729176C2 (de) | 1986-01-16 |
| FR2357302A1 (fr) | 1978-02-03 |
| BE855611A (fr) | 1977-12-13 |
| NL187170B (nl) | 1991-01-16 |
| IT1080678B (it) | 1985-05-16 |
| GB1533509A (en) | 1978-11-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |