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JPS5542238A - Production of lithium tantalate single crystal - Google Patents

Production of lithium tantalate single crystal

Info

Publication number
JPS5542238A
JPS5542238A JP11426878A JP11426878A JPS5542238A JP S5542238 A JPS5542238 A JP S5542238A JP 11426878 A JP11426878 A JP 11426878A JP 11426878 A JP11426878 A JP 11426878A JP S5542238 A JPS5542238 A JP S5542238A
Authority
JP
Japan
Prior art keywords
single crystal
litao
atmosphere
production
lithium tantalate
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
JP11426878A
Other languages
Japanese (ja)
Other versions
JPS6128639B2 (en
Inventor
Yukinori Kuwano
Michitoshi Onishi
Toshiaki Yokoo
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP11426878A priority Critical patent/JPS5542238A/en
Publication of JPS5542238A publication Critical patent/JPS5542238A/en
Publication of JPS6128639B2 publication Critical patent/JPS6128639B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PURPOSE: To obtain a high quality LiTaO3 single crystal in a high yield by growing a single crystal in an atmosphere of inert gas mixed with a little oxygen using a platinum-rhodium alloy crucible to reduce formation of cracks.
CONSTITUTION: A LiTaO3 sintered body is placed in a platinum-rhodium alloy crucible and heat-melted in an atmosphere of N2 gas mixed with 0.2W10% O2. By rotating a LiTaO3 chip crystal a LiTaO3 single crystal is pulled from the melt. Formation of cracks can considerably be reduced as compared to the case of growth in a N2 gas atmosphere, and by raising the yield the production cost can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP11426878A 1978-09-14 1978-09-14 Production of lithium tantalate single crystal Granted JPS5542238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11426878A JPS5542238A (en) 1978-09-14 1978-09-14 Production of lithium tantalate single crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11426878A JPS5542238A (en) 1978-09-14 1978-09-14 Production of lithium tantalate single crystal

Publications (2)

Publication Number Publication Date
JPS5542238A true JPS5542238A (en) 1980-03-25
JPS6128639B2 JPS6128639B2 (en) 1986-07-01

Family

ID=14633545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11426878A Granted JPS5542238A (en) 1978-09-14 1978-09-14 Production of lithium tantalate single crystal

Country Status (1)

Country Link
JP (1) JPS5542238A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439265A (en) * 1981-07-17 1984-03-27 Bell Telephone Laboratories, Incorporated Fabrication method for LiNbO3 and LiTaO3 integrated optics devices
JPS5969490A (en) * 1982-10-14 1984-04-19 Sumitomo Metal Mining Co Ltd Manufacture of lithium tantalate single crystal
US4724038A (en) * 1986-06-02 1988-02-09 Hughes Aircraft Company Process for preparing single crystal binary metal oxides of improved purity

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439265A (en) * 1981-07-17 1984-03-27 Bell Telephone Laboratories, Incorporated Fabrication method for LiNbO3 and LiTaO3 integrated optics devices
JPS5969490A (en) * 1982-10-14 1984-04-19 Sumitomo Metal Mining Co Ltd Manufacture of lithium tantalate single crystal
JPH0411513B2 (en) * 1982-10-14 1992-02-28
US4724038A (en) * 1986-06-02 1988-02-09 Hughes Aircraft Company Process for preparing single crystal binary metal oxides of improved purity

Also Published As

Publication number Publication date
JPS6128639B2 (en) 1986-07-01

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