JPS56125296A - Temperature measurment for crystal growth - Google Patents

Temperature measurment for crystal growth

Info

Publication number
JPS56125296A
JPS56125296A JP2788580A JP2788580A JPS56125296A JP S56125296 A JPS56125296 A JP S56125296A JP 2788580 A JP2788580 A JP 2788580A JP 2788580 A JP2788580 A JP 2788580A JP S56125296 A JPS56125296 A JP S56125296A
Authority
JP
Japan
Prior art keywords
temperature
melt
thermocouple
speed
contact
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.)
Pending
Application number
JP2788580A
Other languages
Japanese (ja)
Inventor
Takashi Shibakuchi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2788580A priority Critical patent/JPS56125296A/en
Publication of JPS56125296A publication Critical patent/JPS56125296A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To control temperature properly, by dropping the temperature measuring end of a thermocouple with the growth of crystal, measuring the temperature of crystal growth while the thermocouple always in contact with melt.
CONSTITUTION: The thermocouple 5 is supported by the supporting member 25 moving on the sliding member 26 by the rotation of the feed screw 24, and the temperature measuring end 5a is brought into contact with melt. In the operation, the feed screw 24 is rotated through the bevel gear 22, the worm and worm wheel 23 by the motor 21. There is a specific relation between the rising speed of the supporting rod 4 which is lifted in response to the growing speed of the crystal 3 and the falling speed of the level. When the thermocouple 5 is droped at the falling speed of the level calculated on the bases of the lifting speed, the temperature measuring end 5a is always in contact with the melt so that the temperature of the melt can be measured directly and accurately.
COPYRIGHT: (C)1981,JPO&Japio
JP2788580A 1980-03-07 1980-03-07 Temperature measurment for crystal growth Pending JPS56125296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2788580A JPS56125296A (en) 1980-03-07 1980-03-07 Temperature measurment for crystal growth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2788580A JPS56125296A (en) 1980-03-07 1980-03-07 Temperature measurment for crystal growth

Publications (1)

Publication Number Publication Date
JPS56125296A true JPS56125296A (en) 1981-10-01

Family

ID=12233340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2788580A Pending JPS56125296A (en) 1980-03-07 1980-03-07 Temperature measurment for crystal growth

Country Status (1)

Country Link
JP (1) JPS56125296A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330484A (en) * 1994-06-03 1995-12-19 Nippon Steel Corp Pulling up device and production of silicon single crystal
US7582160B2 (en) 2005-06-15 2009-09-01 Siltronic Ag Silicone single crystal production process
CN104034447A (en) * 2014-05-27 2014-09-10 安徽省计量科学研究院 Standard device for calibrating dry-type temperature calibrator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330484A (en) * 1994-06-03 1995-12-19 Nippon Steel Corp Pulling up device and production of silicon single crystal
US7582160B2 (en) 2005-06-15 2009-09-01 Siltronic Ag Silicone single crystal production process
CN104034447A (en) * 2014-05-27 2014-09-10 安徽省计量科学研究院 Standard device for calibrating dry-type temperature calibrator

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