JPS5428280A - Automatic controlling method for diameter - Google Patents

Automatic controlling method for diameter

Info

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
Application number
JP9374577A
Other languages
Japanese (ja)
Other versions
JPS5611676B2 (en
Inventor
Kohei Ito
Fumio Nitanda
Kazumasa Takagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP9374577A priority Critical patent/JPS5428280A/en
Publication of JPS5428280A publication Critical patent/JPS5428280A/en
Publication of JPS5611676B2 publication Critical patent/JPS5611676B2/ja
Granted legal-status Critical Current

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
JP9374577A 1977-08-06 1977-08-06 Automatic controlling method for diameter Granted JPS5428280A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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