JTEKT Thermo Systems Vertical Furnaces
Vertical furnaces are used for processing wafers during semiconductor device manufacturing—including for film formation, annealing, and resin film hardening. These batch processing furnaces feature a vertically arranged quartz tube that heats objects placed around the tube for processing. Wafers are loaded onto quartz storage shelves called boats, which are loaded/unloaded from the bottom of the process tubes. With minimal particle generation, the furnaces provide excellent temperature distribution and atmosphere control. In addition, automatic wafer and boat transfer makes it possible to further improve productivity.
Conventional horizontal furnaces are prone to non-uniform film thicknesses within a batch and on wafer surfaces as well as particle and natural oxide film generation, and the equipment itself requires more area due to the increased wafer diameters. Vertical furnaces, however, are not limited by such problems, which factors into their mainstream popularity.
Vertical Furnace LINEUP
| Products | |||||||
|---|---|---|---|---|---|---|---|
| Outer dimension | W1250 × D4300 × H3450 mm | W1100 × D2000 × H2950 mm | W900 × D2300 × H3300 mm | W1000 × D1950 × H3300 mm | W1200 × D1450 × H2610 mm | W1500 × D1000 × H2130 mm | Varies by specification |
| Flat zone length | 1040 mm | 500 mm | Up to 960 mm | Up to 960 mm | Up to 360 mm | Up to 250 mm | Varies by specification |
| Wafer size | 300 mm | 300 mm | 6 to 8 inch | 4 to 8 inch | 4 to 8 inch | 2 to 8 inch | Varies by specification |
| Batch size | 100 wafers | 50 wafers | 150 wafers | Max. 150 wafers | Max. 75 wafers(50 wafers at 8 inch) | Up to 25 wafers | Varies by specification |
| Number of Stock | 16 FOUP | - | 20 Casette | 6 to 8 Casette | 4 Casette | - | Varies by specification |
| Robot Finger | 5 wafers + single wafer | 5 wafers + single wafer | 5 wafers + single wafer | 5 wafers + single wafer | Single wafer | - | Single wafer |
| Apprications | Semiconductor, SiC Power Semiconductor, MEMS, VCSEL, PV (Photovoltaic), Advanced Semiconductor Packaging |
FPD, Advanced Semiconductor Packaging | |||||
Related Solution Case
-
See Solution Cases
Improving the Transfer Stability of Fan-Out wafer
In the FOWLP (Fan-Out Wafer Level Package) heat treatment process, the stability of wafer transfer has been improved by developing a dedicated boat and optimizing the shape of the robot hand.
- Packaging (Polyimide cure)
- VF-5700(B)
- SO2-12-F
-
See Solution Cases
Improving Productivity of 8-inch Wafer
Productivity of activation annealing furnace and oxynitriding furnace for SiC power semiconductor has been improved to process 8-inch wafer at 100 wafers per batch.
- Nitride, Oxynitride
- Activation
- VF-5300HLP
- VF-5300H
-
See Solution Cases
Wafer Handling Robot Compatible with Difference in Wafer Pitches Between Devices
Treatment with 6 inch SMIF pod without compromising productivity is available by using wafer handling robot that can transfer wafer between devices with different pitches.
- Impurity diffusion
- Thermal oxidation
- Annealing
- VF-5100
- VF-5300(B)
-
See Solution Cases
High Performance Polyimide Curing System for FPD
Reduction of organic by-product sediments in polyimide curing of large flat panel substrates
- Curing (for FPD)
- VFS-4000
Vertical Furnace Optimized Design
Flexible equipment layout
It is possible to move the gas box, etc. attached to the furnace to the rear side or under the floor and not just to the front or in the back. We can work around the restrictions of the equipment area and improve the maintainability of the equipment.

Vertical Furnace example
- Support for gas box layout changes
- Support for treatment using a liquid source at atmospheric pressure
- Support for selenization (Se) / sulfurization (S) treatment
- Vacuum support for large-bore furnaces (G4 size or larger)
- Carbon nanotube growth equipment
- Support for thin wafers (80μm or more)
- Fan-out wafer-enabled equipment
- Substrate support for large, FPD polyimide-cured panels
- Support for wet vacuum processing
- Support for dry vacuum (oxygen partial pressure control) processing
- Support for in-situ cleaning using ClF3
- Support for processing bulk transports of quartz cassettes
[Summary] The quartz cassette with wafers is transferred as it is, stacked, and subjected to heat treatment in that state. - Support for flat poly-Si (with no temperature inclination)
* Support varies depending on the model.
Demonstration and test areas

Comprehensive manufacturer of heat treatment equipment, which solves heat treatment problems from different fields beyond the boundaries of fields and areas
From equipment for research and development to production facilities, by assembling technicians in major business areas for vitalization of new products and technology development, and by installing our demonstration equipment for experiments and evaluations, JTEKT Thermo Systems is not only developing processes of its own but also providing the system that can be used for customers’ pre-tests and for performance evaluation.
Semiconductor manufacturing system area Inside the experimental laboratory, air cleanliness of Class 10 or higher must be ensured.
FAQ
-
- QWhere can I purchase the product?
- A
After finalizing the specifications with the customer, we custom-build their order for them. We do not sell products wholesale or by mail order. For more information, please contact us.
Please click here for inquiries. Company Offices
-
- QPlease tell me the product’s price.
- A
Equipment specifications and price vary depending on the product. Please contact us.
Please click here for inquiries. Product Information
-
- QWhat kinds of heat treatment equipment do you handle?
- A
We handle heat treatment equipment that can heat or add reactive gas to materials such as Si wafers, metal, rubber, glass, plastic, and fine ceramics during the film formation process to change the characteristics of those materials.
Product Information
-
- QCan you produce products not listed on the products page?
- A
Please send us your request. We will propose optimal equipment specifications. For more information, please contact us.
Please click here for inquiries. Technologies / Solutions
-
- QCan I verify the process in advance?
- A
We do not lend out any products but we can perform a demonstration to verify a product’s performance. If you have any demonstration requests, please contact us.
Please click here for inquiries. Demonstration Facilities
-
- QI am worried about whether I can operate and maintain the newly purchased equipment.
- A
We provide training before delivery of purchased equipment so the customer and his/her staff members can use the equipment without worry. If you have any questions after delivery, we also provide support by telephone or email. Please contact our sales representative.
Support











