Our lowest cost furnace to grow lab-sized crystals with the Czochralski method is our Arc Melt Furnace TA-200 with the Crystal Growth option. This option adds all components used to grow single crystals of semiconductor materials (Silicon, Germanium and Gallium Arsenide), metals, salts and synthetic gemstones.
This furnace uses three electric arcs capable of melting materials above 3500°C. A crystal seed attached to the seed rod then lowers into the 2″ (50 mm) crucible holding the melt. The controls are programmed to pull the growing crystal.
The pulling speed is adjustable and controls accurately as low as 0.001 mm/min. A separate motor is provided to rotate the 3/8” seed rod, the maximum pull height is 7″ (176 mm). The bottom crucible is also available with a rotational motor.
General Specifications
for crystal growth using Czochralski method
adjustable pulling speed as low as 0.001mm/min.
7″ (178 mm) travel
2″ (50mm) crucible
adjustable seed rod rotation
Details
Arc Melt Furnace Details
For complete Arc Melting Furnace details refer to Arc Melting Furnace TA-200. Described below are the crystal growing components only.
Crystal Puller Components
A servo motor and drive for controlling the travel speed
A gear reducer to allow slow pulling speeds from 14 mm per minute down to 0.001 mm per minute
A precision slide to move the seed rod up and down in the chamber, 7” (178mm) of travel
A DC motor to allow the seed rod to be rotated 0 to 30 RPM
Vacuum tight seal around seed rod to isolate the chamber environment
Touch screen to provide easy programmable operation and display of the crystal puller
Control enclosure houses all electrical components