C - Chemistry – Metallurgy – 30 – B
Patent
C - Chemistry, Metallurgy
30
B
148/1.4
C30B 15/12 (2006.01) C30B 15/10 (2006.01) C30B 15/26 (2006.01)
Patent
CA 1238839
- 1 - Abstract: The invention provides an apparatus for producing a single crystal according to the CZ method. The apparatus comprises a closed container consisting of upper and lower halves and having a shaft for pulling up the single crystal. At least that part of the container which contacts the vapor of the elements is made of a material containing an element of the same group of the Periodic Table as that of the component elements of the single crystal. A gap between the shaft and the container and an opening between the upper and lower halves of the container are sealed with a sealing material. At least one reservoir is positioned in the container for supplying the vapor of a volatile component element of the single crystal. Heating means are provided around the container. A hot zone of the apparatus including the container is made of a material which has an X-ray absorption coefficient not larger than 5 cm2/g, and said material of the hot zone has a thickness such that the X-ray transmittance through the whole hot zone is 10-6 or more so that the single crystal being pulled up may be monitored by X-ray fluoroscopy.
468322
Kotani Toshihiro
Nakagawa Masahiro
Tada Kohji
Kirby Eades Gale Baker
Sumitomo Electric Industries Ltd.
LandOfFree
Apparatus for producing single crystal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for producing single crystal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for producing single crystal will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1227733