JPS5242749A - System for controlling the diameter of a crystal - Google Patents

System for controlling the diameter of a crystal

Info

Publication number
JPS5242749A
JPS5242749A JP11853275A JP11853275A JPS5242749A JP S5242749 A JPS5242749 A JP S5242749A JP 11853275 A JP11853275 A JP 11853275A JP 11853275 A JP11853275 A JP 11853275A JP S5242749 A JPS5242749 A JP S5242749A
Authority
JP
Japan
Prior art keywords
crystal
controlling
diameter
crucible
weight
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
JP11853275A
Other languages
Japanese (ja)
Other versions
JPS577116B2 (en
Inventor
Junji Inui
Toru Sato
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP11853275A priority Critical patent/JPS5242749A/en
Publication of JPS5242749A publication Critical patent/JPS5242749A/en
Publication of JPS577116B2 publication Critical patent/JPS577116B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Crystals, And After-Treatments Of Crystals (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE: To provide a system comprising a system for controlling an electric power for heating a crucible and a system for permitting output by a change in the weight of the crucible system, wherein a pseudochange in weight due to wibration etc. is detected, and the latter control system is then cut away so that a deviation in the diameter of a crystal is reduced.
COPYRIGHT: (C)1977,JPO&Japio
JP11853275A 1975-09-30 1975-09-30 System for controlling the diameter of a crystal Granted JPS5242749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11853275A JPS5242749A (en) 1975-09-30 1975-09-30 System for controlling the diameter of a crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11853275A JPS5242749A (en) 1975-09-30 1975-09-30 System for controlling the diameter of a crystal

Publications (2)

Publication Number Publication Date
JPS5242749A true JPS5242749A (en) 1977-04-02
JPS577116B2 JPS577116B2 (en) 1982-02-08

Family

ID=14738915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11853275A Granted JPS5242749A (en) 1975-09-30 1975-09-30 System for controlling the diameter of a crystal

Country Status (1)

Country Link
JP (1) JPS5242749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53137672U (en) * 1977-04-06 1978-10-31

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS#N78=1973 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53137672U (en) * 1977-04-06 1978-10-31
JPS574732Y2 (en) * 1977-04-06 1982-01-28

Also Published As

Publication number Publication date
JPS577116B2 (en) 1982-02-08

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