What are the advantages of polysilicon ingot furnace compared with single crystal furnace?

What are the advantages of polysilicon ingot furnace compared with single crystal furnace?

The ingot furnace produces single crystals. The photoelectric conversion rate of polycrystalline is 14 points, and the photoelectric conversion rate of single crystal is 17 points. However, the yield rate of the ingot furnace is higher. relatively simple.

What is the powder produced by the single crystal furnace?

Single crystal furnace is a kind of equipment that uses graphite heater to melt polycrystalline silicon and other polycrystalline materials in an inert gas (nitrogen and helium) environment, and grows dislocation-free single crystals by the Czochralski method.

What is the single crystal furnace thermal field

The production of monocrystalline silicon requires the raw material polycrystalline silicon to be melted in a quartz crucible in the monocrystalline furnace, and the thermal field is the necessary auxiliary facilities for the production of monocrystalline silicon, such as heating, heat preservation, heat shielding, leakage prevention (silicon), etc., All are achieved through the thermal field.

How to reduce the crystal pulling cost of single crystal furnace?

Use the secondary charging system to increase the charging capacity of a single furnace. It can also shorten the crystal pulling time, reduce energy consumption, and the crucible can be used twice, all of which can reduce the crystal pulling cost

What is the general electromagnetic field of a single crystal furnace 100

The magnetic field pulling method is a very effective method in the process research of foreign single crystal silicon, and the maximum magnetic field can reach a central magnetic field greater than 150mT.

Generally ≥100mT, depending on the center distance of the electromagnetic iron

E.g

Center distance is 850mm, center magnetic field≥150mT

Center distance is 950mm, center magnetic field≥120mT

What models of single crystal furnaces are available?

Single crystal furnaces are generally named by the diameter of the furnace chamber. For example, the earliest 62 furnaces (furnace diameter 620mm) now have 80 furnaces, 90, 95, 120, and 150 furnaces, but there are fewer furnaces used because of heat. The field is immature. Furnaces over 80 furnaces can pull 6, 6.5, 8, 12 inch single crystals, depending on the diameter of the heat shield. The larger the furnace chamber, the larger the thermal field, the more materials will be charged and the cost will be lower.

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