OTF-1100X-II-XX Two-Zone Tube Furnace with Optional Quartz Tube and Vacuum Flanges
The OTF-1100X-II-XX tube furnace is engineered for advanced laboratory thermal processing tasks such as chemical vapor deposition (CVD) and diffusion annealing, particularly suited for film growth of two-dimensional transition metal dichalcogenides (TMDs). It accommodates wafer sizes up to 12″ with an optional quartz tube diameter of 11″ or 15″ and integrates vacuum flanges for controlled atmosphere processing.
This model features two independently controlled heating zones, each 450 mm in length, providing a total heating zone length of 900 mm. The furnace employs a microprocessor-based PID control system with three K-type thermocouples, delivering precise temperature regulation within ±1°C and minimizing overshoot. The electrical lid actuator facilitates convenient and safe sample loading and unloading.
Key Features
- Maximum operating temperature of 1200°C with heating and cooling rates up to 10°C/min.
- Double-layer steel casing with air cooling keeps external surface temperature below 70°C.
- Optional high-purity fused quartz tubes available in 11″ or 15″ outer diameter and 71″ length.
- Vacuum sealing flanges with stainless steel needle valves and silicon O-rings enable vacuum levels down to 10^-2 torr.
- Three 30-segment programmable digital controllers with PID and self-tuning functions.
- Hinged-type water-cooled flange and fibrous ceramic tube blocks reduce heat radiation and facilitate sample handling.
- Optional PC control software and Eurotherm controllers available for enhanced temperature accuracy and data management.
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum Temperature | 1200°C |
| Heating Zones | Two zones, each 450 mm (900 mm total) |
| Temperature Control | Three K-type thermocouples, PID control, ±1°C accuracy |
| Heating Elements | 36 SiC heating elements |
| Tube Options | Fused quartz tubes, 11″ or 15″ OD, 71″ length |
| Vacuum Capability | Vacuum flanges with stainless steel needle valves; vacuum down to 10^-2 torr |
| Power Supply | Three-phase 460V ±10%, 50/60 Hz (380V optional) |
| Power Consumption | Maximum 50 kW |
| Cooling | Air cooling with double-layer steel casing |
Typical Applications
This tube furnace is widely used for chemical vapor deposition (CVD) processes, annealing, and diffusion treatments of semiconductor wafers up to 12″ diameter. It is particularly suitable for research and development involving two-dimensional materials such as transition metal dichalcogenides (TMDs) and thin film growth requiring precise temperature control and vacuum environment.
Configuration & Operating Notes
The furnace includes needle valves, vacuum gauges, and stainless steel vacuum flanges with silicon O-rings for vacuum sealing. An electrical actuator facilitates easy lid opening. Optional accessories include PC control software, Eurotherm controllers for enhanced temperature accuracy, calibration kits, quartz boats, and turbopumps for high vacuum applications down to 10^-5 torr.
Users should handle quartz tubes with care due to their fragility. The furnace is designed for vacuum or low-pressure operation below 0.2 bar and safe gas flow rates under 200 SCCM to prevent thermal shock. A two-stage pressure regulator is recommended to limit gas cylinder pressure below 3 PSI for safe operation.
