Used HITACHI / KOKUSAI DD-833V #293749184 for sale

HITACHI / KOKUSAI DD-833V is a diffusion furnace and accessories equipment designed to deliver high precision temperature control for a wide range of applications. It utilizes a vertical quartz tube through which a gas mixture is passed to achieve uniform heating of wafers. The large inner diameter allows for large batches of wafers and layer thicknesses to be simultaneously processed, while the high temperature precision enables precise control of transfer time and heat transfer. The diffusion furnace is a three-axis model, which features an optical pyrometer to accurately monitor and control the temperature in multiple zones. It also includes a quartz tube protector for temperature control, a quartz chamber, and a quartz bell jar. The furnace is built from high-quality, corrosion-resistant stainless steel and are equipped with semiconductor power regulators, electronic pressure monitor, emergency shut-off, and level indicators. The accessories of HITACHI DD-833V include a vacuum chamber, turbo molecular pump, rotary drive, safety valve, flow controller, pressure switch, pressure gauge, and a wafer heat detector. The vacuum chamber helps to eliminate the presence of air in the the diffusion furnace process, ensuring high-quality results. The turbo molecular pump functions at high speed to pump out the gases from the diffusion furnace, while the rotary drive is used to turn the wafers inside the diffusion furnace while processing them. The included safety valve is designed to rapidly limit pressure when needed, and the flow controller ensures the gas mixture is precisely regulated. The pressure gauge and pressure switch are designed to monitor and control the pressure levels during processing. The wafer heat detector provides visual feedback on wafer temperature. In addition, KOKUSAI DD 833V includes two cooling systems and a temperature controller. The first cooling system is installed in the exhaust manifold, and is designed to quickly cool off the gas mixture leaving the diffusion furnace. The second unit is dry-type cooling and the temperature controller helps to precisely regulate the temperature within a range of 50 to 1000°C. HITACHI DD 833V diffusion furnace and accessories machine provides precise control of temperature and the flow of heat parameters, making it an ideal choice for a wide range of applications.