Furnace structure
| - Double-layer steel casing with air cooling. The surface temperature of the case is < 70°C.
- Refractory fibrous alumina insulation liner for maximum energy saving.
- Heating element: NiCrAl Resistance Wire
- Two fibrous ceramic tube blocks are included for blocking heat radiation from the inside tube.
- Hinged-type flange with water cold for sample loading at ease
- This furnace can be used as an annealing or diffusion furnace for 8" wafers ( 11"tube) or 12" wafers (15" tube)
- The electrical lid actuator provides easy & hassle-free lid opening
 |  |  |  | Structure schematic
| 11" or 15" ceramic blocks
| Holding a 12" wafer | Electrical Lid Actuator |
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Heating zone
| - Two zones: 450 mm + 450 mm ( 900 mm in total)
- Constant temperature zone length: 500 mm (if three zones are in the same temperature within +/- 5°C)
- Cross-section Temperature tolerance： +/- 5°C
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Working temperature
| - Max heating temperature: 1200°C
- Max heating & cooling rate: 10°C/min
- SiC heating elements, a total of 36 pcs
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Temperature control
 | - Three digital controllers with PID/self-tuning functions and 30 segments programmable.
- Thermocouple: three K-type thermocouples (one for each zone)
Control accuracy: +/- 1°C - Software for PC control is available as optional ( click the picture on the left to order )
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Eurotherm Controllers (optional)
| - Temperature Accuracy: ± 0.1ºC
- 1 heating zone per controller
- 1 program of 8 or 24 segment
- Alarm Relay: Form 'A' and Form ‘C’ built-in
- Digital Communications: RS485 with software
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Laptop & software (Optional)
  | - Brand new laptop with Microsoft Windows 10 and Microsoft Office 2013 (30 days free trial) for immediate use.
- Labview Based Temperature Control System (EQ-MTS01) is available to enable the user to edit temperature profiles, manage heat-treatment recipes, and record and plot data for MTI furnaces.
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Fused quartz tube
| - 11" OD or 15" O.D quartz tube with 71" Length is selectable from product option
- High purity quartz tube, please click the bottom left picture to view.
- Warning: quartz tube is fragile, please handle it with care. The warranty does not cover the broken tube by use
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Vacuum sealing & Flange
| - A pair of stainless steel vacuum sealing flanges (Hinged Type) and 4 pieces of high temp-resistance silicon O-ring are included in order to achieve the vacuum rate of 10^-2 torr via a heavy-duty mechanical pump.
- Left Side Flange: stainless steel needle valves, and 1/4" barbed hose fitting.
- Right Side Flange: KF40 vacuum port with a vacuum gauge. KF-40 Vacuum Right-Angle Valve is optional for easy connection to KF40 bellows and pumps.
- One 1/4" OD thermal couple insert port is built on the right flange for easy temperature calibration.
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Options
| - The tube furnace should be calibrated regularly to maintain temperature accuracy and uniformity. We are providing a simple calibration kit for you to complete this job at an extra cost. The complete calibration kit includes
- You may consider ordering turbopump for hi-vacuum up to 10-5 torr ( click pic below right to order )
- 4'' ~ 8'' large size quartz boats
- We can make the furnace into a verticle upon request.
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Rated Voltage
| - Three Phase, 208V AC, 50/60 Hz （ 3 phase 380V is optional）
- AWG 8# Power cord is included (without plug)
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Power consumption
| Max. 20KW (100A breaker required) |
Product Dimension
| 2000 L x 765W x 1130 H, mm
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Net weight
| 300kg |
Shipping dimension
| 85" x 40" x 70" |
Shipping weight
| 1200 lbs |
Warranty
| - One-year limited warranty on electrical parts. ( Consumable parts such as processing tubes, o-rings, and quartz tubes are not covered by the warranty)
- You may order a replacement quartz tube at the link below
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Compliance
| - CE Certified
- NRTL or NRTLCSA Certification is available upon request at the extra cost
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| Operation Instructions |  |
Warning
 | - Tube furnaces with quartz tubes are designed for use under vacuum and low pressure < 0.2 bar
- Attention: A two-stage pressure regulator must be installed on a gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator.
- Vacuum limit definition for all quartz tube furnaces: * Vacuum pressures may only be safely used up to 1000°C
- The flow rate for gases should be limited to<200 SCCM (or 200ml/min) for reducing thermal shocks to the tube
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