Used PHOTOMEC CZ / PTM #293645801 for sale
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ID: 293645801
Wafer Size: 8"
Vintage: 2017
Monocrystalline silicon grower, 8"
Furnace chamber, Φ24"
Seed stroke: 3000 mm
2017 vintage.
PHOTOMEC CZ / PTM is a 3-axis equipment designed for precision crystal growing, sawing and slicing operations. The system has a dedicated crystal-growing chamber with an atmosphere of controlled temperature and humidity, enabling large crystals to grow in the zero-gravity environment of a space station. The unit also comes with an advanced sawing and slicing capability, allowing crystals to be cut and machined to the precise shape and size required. The crystal-growing chamber is difficult to access as the chamber is surrounded by shielded walls and a double air lock door. It contains a carefully designed holder to maintain the correct geometry of the crystals and uses a uniform heat profile. The atmosphere and temperature of the chamber is controlled with precision to ensure the growth of large, uniform and defect-free crystals. The mixing window enables precise and accurate mixing of dopant gases with an atmosphere of nitrogen, oxygen and helium. Molybdenum susceptors, which increase the thermal conductivity and reduce the rate of temperature fluctuations, are placed within the chamber. The susceptor is coupled with a precise thermal controller, which regulates the temperature within the chamber to the precise requirement for uniform crystal nucleation and growth. The sawing and slicing are accomplished by a precise X, Y and Z axis movement. The arm has a rotating diamond saw blade attached, along with a powerful focusing lens and adjustable mirrors to shape the beam. An addition of a fine pitch lead screw enables exact, micron-level saw traverses. The saw is also equipped with a laser beam guiding machine, a 4-jaw chuck holder and a vacuum tool to capture and contain all particles emitted during the slicing process. The precision of the asset enables growth of large crystals and sawing/slicing with accuracy, crop yield and speed unmatched by traditional techniques. It is a durable and reliable model, designed to provide high-quality and uniform crystals for any application. CZ / PTM is a tool of choice for cutting, sawing and slicing of large, uniform and defect-free crystals in low gravity applications.
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