Patent ID: 11885037
Assignee: MEISHAN BOYA ADVANCED MATERIALS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A temperature field device for crystal growth, comprising:
a first drum;
a second drum located inside the first drum;
a filler filled in a space between the first drum and the second drum;
a bottom plate mounted on a bottom of the temperature field device and covering a bottom end of the first drum;
a first cover plate mounted on a top of the temperature field device and covering a top end of the first drum;
an observation unit mounted on the first cover plate, wherein the observation unit includes a through hole opened on the observation unit, and the through hole is configured for gas passing; and
a gas channel mounted on the observation unit, wherein a size of the gas channel is matched with a size of the through hole.