JPS56155095A - Growing method of single crystal - Google Patents
Growing method of single crystalInfo
- Publication number
- JPS56155095A JPS56155095A JP5649380A JP5649380A JPS56155095A JP S56155095 A JPS56155095 A JP S56155095A JP 5649380 A JP5649380 A JP 5649380A JP 5649380 A JP5649380 A JP 5649380A JP S56155095 A JPS56155095 A JP S56155095A
- Authority
- JP
- Japan
- Prior art keywords
- crystal
- seed crystal
- single crystal
- melt
- seed
- 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
Links
Abstract
PURPOSE: When a single crystal is grown by the Chokralsky method, at the beginning of the crystal growth, the tip of the seed crystal is purified with an operation corresponding to remelting, then the crystal is lifted up, thus producing a good- quality single crystal.
CONSTITUTION: The raw material for the single crystal is melted in the crucible 2 and the seed crystal 5 is brought into contact with the melt 3 and lifted up to produce a grown single crystal 6 wherein at the beginning the seed crystal 5 is stopped under contact with the melt 3, the amount of heat fed is increased to melt the seed crystal 5 by a certain distance upward from the surface of the melt and this state is kept for a certain time. Thus, the transformation defects and crystal defects at the solid-liquid interface of the seed crystal 5 are expelled in the direction perpendicular to the drawing-up direction. Then, the seed crystal is drawn up by a certain distance under keeping the same diameter as that of the seed crystal and the system is restored to the usual conditions, then the routin lifting is conducted to produce the grown single crystal 6 with small transformation density and defect density.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5649380A JPS56155095A (en) | 1980-04-28 | 1980-04-28 | Growing method of single crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5649380A JPS56155095A (en) | 1980-04-28 | 1980-04-28 | Growing method of single crystal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56155095A true JPS56155095A (en) | 1981-12-01 |
Family
ID=13028612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5649380A Pending JPS56155095A (en) | 1980-04-28 | 1980-04-28 | Growing method of single crystal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56155095A (en) |
-
1980
- 1980-04-28 JP JP5649380A patent/JPS56155095A/en active Pending
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