Patent ID: 11859306
Assignee: GLOBALWAFERS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A manufacturing method of a silicon carbide ingot, comprising:
grinding a sidewall of a seed;
providing a raw material containing carbon and silicon and the seed located above the raw material in a reactor, wherein a first surface of the seed faces the raw material, wherein a lateral distance between the sidewall of the seed and an inner wall of the reactor is 50 mm to 150 mm;
heating the reactor and the raw material, wherein part of the raw material is vaporized and transferred to the first surface of the seed and the sidewall of the seed and forms a silicon carbide material on the seed, to form a growing body containing the seed and the silicon carbide material, wherein the growing body grows along a radial direction of the seed, and the growing body grows along a direction perpendicular to the first surface of the seed; and
cooling the reactor and the raw material to obtain the growing body that has completed growth, wherein the growing body that has completed growth is the silicon carbide ingot, and a diameter of the silicon carbide ingot is greater than a diameter of the seed.