Synthetic Graphite Blocks For CZ Single Crystal Furnace

Synthetic Graphite for CZ Single Crystal Pulling Furnace

Synthetic graphite is used for single crystal silicon growth by the CZ method. Preparation of monocrystalline silicon usually involves first preparing polycrystalline or amorphous silicon and then growing rods of monocrystalline silicon, which are mainly used in the fabrication of semiconductor components, from the melt by either the straight drawing method or the suspension zone fusion method.

Currently, the straight drawing method (CZ method) is a commonly used method for manufacturing monocrystalline silicon, which involves multiple steps in order to prepare monocrystalline silicon ingots. All processes used to grow semiconductor crystals take place at high temperatures and in harsh environments, so the hot zones of industrial crystal growth furnaces are often equipped with graphite components that are resistant to high temperatures and corrosion.

High purity is a crucial requirement for semiconductor graphite, especially during crystal growth. Impurities in graphite are even more critical determinants of crystal quality, so the impurity content should be kept below 5 parts per million.

At SHJ Graphite, our experts draw on decades of experience to select the best graphite materials for our customers' CZ crystal growth furnaces.

Fine Grained Graphite Blocks

SHJ Suppy Graphite Materials (Fine Grained Graphite) for CZ single crystal pulling furnace

The single crystal silicon growth by the CZ method relies heavily on high-purity graphite components and graphite felt insulation. We provide synthetic graphite for the manufacture of graphite components in single crystal silicon growth furnaces, such as graphite crucibles and graphite heaters.

Advantage

• Products: Since crystal growth is all carried out at ultra-high temperatures and under ultra-pure conditions, furnaces must be made of extremely robust components. As a global leader in graphite technology in this field, SHJ offers graphite materials that are ideally suited for the manufacture of high-purity, heat- and corrosion-resistant graphite components for CZ crystal growth furnaces.
• Technology: Our laboratory experts play an active role in setting quality standards for graphite materials. Regardless of the specifics of the CZ furnace, SHJ can provide the right graphite blocks for use in a wide range of graphite components within the CZ furnace. You can rely on our extensive expertise in the field of graphite materials to find the perfect solution.
• Service: As a manufacturer of high-purity graphite products, we also guarantee correct handling and processing throughout the entire production chain, including packaging and transportation, and give sound technical advice for specific applications. Our products and expertise provide strong support for efficient crystal growth processes.

In addition to graphite materials, we offer graphite components for monocrystalline silicon crystal growth furnaces, including not only graphite crucibles and graphite heaters, but also a wide range of graphite carbon felts as well as CFC for crystal growth systems.

We have a wealth of domestic and overseas carbon processing know-how and achievements, and we can produce and process graphite, as well as components such as carbon-carbon composites, carbon felts, and other heat-insulating materials. We are particularly good at ensuring the yield of machined products such as grooves and holes, the uniformity of tolerances, and the consistency of polishing.SHJ works closely with our customers for mutual development.

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