JPS5767099A - Pulling method for lithium niobate single crystal - Google Patents
Pulling method for lithium niobate single crystalInfo
- 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
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
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)
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 |
-
1980
- 1980-10-08 JP JP55139769A patent/JPS5848520B2/en not_active Expired
Cited By (1)
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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