JPS5428280A - Automatic controlling method for diameter - Google Patents
Automatic controlling method for diameterInfo
- Publication number
- JPS5428280A JPS5428280A JP9374577A JP9374577A JPS5428280A JP S5428280 A JPS5428280 A JP S5428280A JP 9374577 A JP9374577 A JP 9374577A JP 9374577 A JP9374577 A JP 9374577A JP S5428280 A JPS5428280 A JP S5428280A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- crucible
- controlling method
- automatic controlling
- circuit
- 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.)
- Granted
Links
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
PURPOSE: To make automatic diameter control smooth and to pull up crystals of small fluctuation in diameter from a crucible, by connecting in high-frequency heating of the crucible a delay element to either one of a high-frequency current circuit or a crucible weight detecting circuit so as to make the time constants of the both circuit coincide with each other.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9374577A JPS5428280A (en) | 1977-08-06 | 1977-08-06 | Automatic controlling method for diameter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9374577A JPS5428280A (en) | 1977-08-06 | 1977-08-06 | Automatic controlling method for diameter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5428280A true JPS5428280A (en) | 1979-03-02 |
JPS5611676B2 JPS5611676B2 (en) | 1981-03-16 |
Family
ID=14090947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9374577A Granted JPS5428280A (en) | 1977-08-06 | 1977-08-06 | Automatic controlling method for diameter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5428280A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5688408A (en) * | 1979-12-20 | 1981-07-17 | Ube Ind Ltd | Preparation of reinforced polybutadiene rubber |
WO1983002464A1 (en) * | 1982-01-04 | 1983-07-21 | Seymour, Robert, Stephen | Diameter control in czochralski crystal growth |
-
1977
- 1977-08-06 JP JP9374577A patent/JPS5428280A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5688408A (en) * | 1979-12-20 | 1981-07-17 | Ube Ind Ltd | Preparation of reinforced polybutadiene rubber |
WO1983002464A1 (en) * | 1982-01-04 | 1983-07-21 | Seymour, Robert, Stephen | Diameter control in czochralski crystal growth |
US4565598A (en) * | 1982-01-04 | 1986-01-21 | The Commonwealth Of Australia | Method and apparatus for controlling diameter in Czochralski crystal growth by measuring crystal weight and crystal-melt interface temperature |
Also Published As
Publication number | Publication date |
---|---|
JPS5611676B2 (en) | 1981-03-16 |
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