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Silicon Crystallization Unit (SCU450-800)

Silicon Crystallization Unit (SCU450-800)

Product catalog summary

Overview: The document provides detailed information on the SCU450 and SCU600/800 Silicon Crystallization Units, which are standalone furnaces used for the production of solar-grade silicon ingots. These units are designed for melting and crystallizing silicon to produce ingots that are subsequently processed into wafers for solar cells.

Specifications:

The SCU450 is compatible with Gen 4 and Gen 5 crucibles, with a capacity range of 250-500 kg per cycle, resulting in an annual solar power output of approximately 6-8 MWp.
The SCU600/800 supports Gen 5 and Gen 6 crucibles, with a capacity range of 600-800 kg per cycle, corresponding to an annual output of approximately 8-12 MWp.
Both units feature top and bottom heating, a modular design, and are pre-assembled and factory-tested for quick start-up.

Design and Safety Features:

The furnaces utilize a top and bottom heater design for controlled crystallization, offering high efficiency and process flexibility.
Safety features include chamber pressure relief, over-temperature protection, moisture detection, and permanent bottom heater monitoring.
All processes are automatically controlled via a PLC system, which is connectable to a PC network for process customization and visualization.

Operational Flexibility and Productivity:

The units are equipped with a remote operation control center for safe and efficient multi-furnace operation.
The SCU600/800 can produce a Gen 6 ingot of 650 kg in approximately 60 hours, representing a 30% productivity increase over Gen 5.
The operator control panel includes a process visualization system for automatic operation and data documentation.

Technical Data:

Base area: approx. 6.0 x 4.5 m²
Max. operating temperature: 1,570 °C
Ultimate vacuum: 5 Pa
Power consumption per cycle: approx. 3,600 kWh (SCU450) and 5,500 kWh (SCU600/800)
Inert gas consumption per cycle: approx. 60 Nm³ (SCU450) and 70 Nm³ (SCU600/800)

Global Presence: ALD Vacuum Technologies has a worldwide sales and service network, with offices in Great Britain, Russia, Germany, China, Japan, and the USA/Canada.

Catalog excerpts

Silicon Crystallization Unit (SCU450-800)-1

table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:14.00pt "Impact", sans-serif; } .font1 { font:23.00pt "Impact", sans-serif; } .font2 { font:40.00pt "Verdana", sans-serif; } .font3 { font:43.00pt "Verdana", sans-serif; } SCU450 and SCU600/800 Silicon CrystalEizalion Unit for Solar-grade Silicon Ingot Production

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Silicon Crystallization Unit (SCU450-800)-2

table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:9.00pt "Impact", sans-serif; } .font1 { font:11.00pt "Impact", sans-serif; } .font2 { font:13.00pt "Impact", sans-serif; } .font3 { font:25.00pt "Impact", sans-serif; } .font4 { font:10.00pt "Verdana", sans-serif; } .font5 { font:31.00pt "Verdana", sans-serif; } .font6 { font:32.00pt "Verdana", sans-serif; } SCU450 and SCU600/800 The Benchmark for Polycrystalline Silicon Ingot Production Silicon Crystallizatio» Unit (or Solar-grade Silicon Ingot Prodiction The SCU450 ond 600/800 is a siand clone furnace for mailing...

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Silicon Crystallization Unit (SCU450-800)-3

table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:9.00pt "Impact", sans-serif; } .font1 { font:11.00pt "Impact", sans-serif; } .font2 { font:13.00pt "Impact", sans-serif; } Proven Design The SCU450 ond 600/800 furnace concept is a proven design for melting ond crystollizing of solargrade silicon. The furnaco b based on o modulor design. lid on top of the furnoce con be moved for loadtng ond unloading of the crucible- Ail process sleps ore performed auto-moticolly PLC conlrolled in conlrolled atmosph(re. PLC process control/visuolizotion System connectable to PC network....

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Silicon Crystallization Unit (SCU450-800)-4

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Silicon Crystallization Unit (SCU450-800)-5

VIDPNeu.QXD table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.75pt "Franklin Gothic Medium", sans-serif; } .font1 { font:6.00pt "Impact", sans-serif; } .font2 { font:8.00pt "Tahoma", sans-serif; } .font3 { font:11.00pt "Tahoma", sans-serif; } 5 Flexibility and Productivity The heaters and the crucible are surrounded by a specially treated graphite insulation material. During the melting process the bottom is insulated with a moveable heat gate, which will drive aside before starting crystallization. A cooling plate for crystallization is located under the heat gate....

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Silicon Crystallization Unit (SCU450-800)-6

VIDPNeu.QXD table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:11.25pt "Franklin Gothic Medium", sans-serif; } .font1 { font:5.00pt "Impact", sans-serif; } .font2 { font:6.00pt "Impact", sans-serif; } .font3 { font:6.00pt "Tahoma", sans-serif; } .font4 { font:7.00pt "Tahoma", sans-serif; } .font5 { font:8.00pt "Tahoma", sans-serif; } .font6 { font:9.00pt "Tahoma", sans-serif; } .font7 { font:13.00pt "Tahoma", sans-serif; } .font8 { font:4.00pt "Trebuchet MS", sans-serif; } SCU450 SCU600/800 Base area approx. 6.0 x 4.5 m2 approx. 6.0 x 4.5 m2 Height (lid closed) 4.2...

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