Crystal Growing

 

For years PVA TePla Group has been designing and producing crystal growing equipment for the production of silicon crystals, and as a technologically leading producer PVA TePla is one of the most important in its field worldwide.

PVA TePla Danmark in Frederikssund is another part of the crystal growing systems division within the PVA TePla Group since May 2004. It has emerged from the former floatzone division of Haldor Topsoe A/S.

The floatzone technology of PVA TePla Danmark was developed over decades as a special method of growing ulta-pure and oxygen-free silicon crystals for power electronics applications.

 

 

 

 

Crystal Pulling Equipment (CZ)

	For years PVA TePla Group has been designing and producing crystal growing equipment for the production of silicon crystals, and as a technologically leading producer PVA TePla is one of the most important in its field worldwide.

Typ EKZ 3000 Compared to the crystal pulling equipment used until now, the concept and design of the 300mm plant signify an important step in the technological development. In developing the plant, consideration was given to all knowledge gained to date and to the available know-how of our customers worldwide. These furnaces provide ideal conditions for meeting crystal quality requirements. ... more

VGF Systems

	In today’s fast-developing information society, methods for rapid, broadband data transmission are gaining constantly in importance.

	Typ Kronos In the vertical gradient freeze (VGF) process, a crystal solidifies directionally in a crucible with vertical temperature gradient. Compared to the Czochralski process, this provides the advantage of lower ... more

Floatzone Systems (FZ)

 

In the production of silicon crystals by the Floatzone method, the polycrystalline raw material is molten by induction in the vicinity of a high frequency coil without any crucible contact. The melt drop is “floating” and confined by its surface tension forces and electromagnetic forces. After dipping a single crystal seed into the melt drop from below, successive single crystal growth is performed by slowly pulling the seed downward, giving room to the solidifying material.

	Typ FZ 14 This machine is an intelligently designed piece of equipment, which meets the requirements in silicon crystal growing at diameters of up to 4 inches and at the same time has reasonable physical dimensions. The machine has a crystal growing length of 1300 mm and produces 3" crystals up to ... more

	Typ FZ 14 M For analytical purposes, the FZ-14M has been developed. This is a floatzone silicon crystal grower specifically designed in accordance with the requirements of ASTM Std. F1723-96. The FZ-14M converts miniature rods of polycrystalline silicon into monocrystalline silicon for use in the assessment of the ... more

	Typ FZ 20 The FZ-20 consists of a main, upper and a lower chamber, an upper and a lower pulling arrangement, all built as modules. The FZ-20 is fully equipped with access doors, a tank circuit, a control panel, a high frequency generator, a data logging system and an operator’s platform ... more

	Typ FZ 30 The FZ-30 consists of a main, upper and lower chamber and an upper and lower pulling arrangement, all built as modules. The FZ-30 is fully equipped with access doors, a tank circuit, a control panel, a high frequency generator, a data logging system and an operator’s platform ... more

	Typ SR 110 This machine is very effective since two slim rods are produced at the same time, using a double hole HF-coil connected to one generator. Every care has been taken to make the machine very operator-friendly and to allow fast restart of pulling after harvest of the produced slimrods ... more

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