JPS5767099A - Pulling method for lithium niobate single crystal - Google Patents

Pulling method for lithium niobate single crystal

Info

Publication number
JPS5767099A
JPS5767099A JP55139769A JP13976980A JPS5767099A JP S5767099 A JPS5767099 A JP S5767099A JP 55139769 A JP55139769 A JP 55139769A JP 13976980 A JP13976980 A JP 13976980A JP S5767099 A JPS5767099 A JP S5767099A
Authority
JP
Japan
Prior art keywords
lithium niobate
single crystal
crystal
niobate single
long
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
JP55139769A
Other languages
Japanese (ja)
Other versions
JPS5848520B2 (en
Inventor
Sadao Matsumura
Satao Yashiro
Tsuguo Fukuda
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55139769A priority Critical patent/JPS5848520B2/en
Publication of JPS5767099A publication Critical patent/JPS5767099A/en
Publication of JPS5848520B2 publication Critical patent/JPS5848520B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

PURPOSE: To obtain the titled single crystal with superior properties for the PIF surface wave filter of a television set by using a seed crystal which is long in a specified direction and subject to growing a crystal in the crystallizing direction of the seed crystal.
CONSTITUTION: Lithium niobate put in a crucible is melted by heating so that the average temp. gradient in the perpendicular direction up to 5mm just above the melt in the crucible is regulated to ≥40°C/cm, and a lithium niobate single crystal is grown in 123±3° Y direction by pulling using a seed crystal which is long in 123±3° Y direction. Thus, a large lithium niobate single crystal having less thermal strain, causing no cracking and has a large diameter and a long size can be manufactured in a high yield.
COPYRIGHT: (C)1982,JPO&Japio
JP55139769A 1980-10-08 1980-10-08 Method for pulling lithium niobate single crystal Expired JPS5848520B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55139769A JPS5848520B2 (en) 1980-10-08 1980-10-08 Method for pulling lithium niobate single crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55139769A JPS5848520B2 (en) 1980-10-08 1980-10-08 Method for pulling lithium niobate single crystal

Publications (2)

Publication Number Publication Date
JPS5767099A true JPS5767099A (en) 1982-04-23
JPS5848520B2 JPS5848520B2 (en) 1983-10-28

Family

ID=15252965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55139769A Expired JPS5848520B2 (en) 1980-10-08 1980-10-08 Method for pulling lithium niobate single crystal

Country Status (1)

Country Link
JP (1) JPS5848520B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0635689U (en) * 1992-10-16 1994-05-13 住友エール株式会社 Brake lining wear amount detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0635689U (en) * 1992-10-16 1994-05-13 住友エール株式会社 Brake lining wear amount detector

Also Published As

Publication number Publication date
JPS5848520B2 (en) 1983-10-28

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