Quartz Furnace Tube
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Engineered to SEMI standards for high-temperature diffusion, CVD processing, and wafer transfer in Philippine industrial export zones.
Ultra-high thermal resistance tube for oxidation and diffusion furnaces serving electronics plants across Luzon.
Precision CNC-machined quartz boats, carriers, and lab instruments customized for Philippine semiconductor requirements.
Raw plasma-melted synthetic and natural quartz ingots with >99.995% purity for advanced component fabrication.
Superior optical clarity and structural rigidity for semiconductor support rods and cleanroom lab tools.
Lianyungang Southeast Quartz Products Co., Ltd. is a premier manufacturer with over 10 years of specialized experience in high-purity fused silica and quartz glass processing. Located in Donghai County, Jiangsu Province, China—the globally recognized quartz product distribution and processing epicenter on the Eurasian continent—we operate state-of-the-art thermal fusing, CNC micro-slotted machining, and cleanroom annealing facilities.
As a key supplier serving industrial clients across the Philippines, we specialize in manufacturing precision quartz boats, diffusion tubes, chemical bath carriers, and customized quartz ware tailored precisely to client drawings and strict international SEMI specifications.
From prompt delivery to the Port of Manila, Batangas, and Subic Bay to reliable technical support for cleanroom engineers, our direct-factory ecosystem eliminates intermediary markups, delivering premium quality, tight tolerances (±0.02 mm), and exceptional thermal durability.
Why reliable high-purity quartz boats and quartz components are essential for the country's booming manufacturing export economy.
The electronics industry remains the cornerstone of the Philippine export economy, accounting for over 55% to 60% of total merchandise exports through the Semiconductor and Electronics Industries in the Philippines Foundation, Inc. (SEIPI). Major industrial hubs located across CALABARZON (Laguna Technopark, Light Industry & Science Park, First Philippine Industrial Park), Clark Freeport Zone, Subic Bay, and Cebu (Mactan Economic Zone) house world-class assembly, packaging, test (OSAT), and wafer-level processing facilities.
As Philippine manufacturers transition toward higher value-added fabrication, power semiconductors, discrete devices, and optical components, thermal diffusion processes require uncompromising component integrity. High-temperature diffusion boats, slotted quartz wafer carriers, and quartz bell jars are vital consumables in these facilities, ensuring defect-free silicon handling under extreme thermal cycles.
With the Philippine Department of Energy accelerating renewable energy adoption through the National Renewable Energy Program (NREP), local investments in solar manufacturing and PV cell maintenance are expanding. Fused quartz plays a critical dual role:
Leading research institutions and government bodies in the Philippines—such as the Department of Science and Technology (DOST-ASTI), the University of the Philippines Diliman, and De La Salle University—are expanding materials science, nanotech, and chemical engineering programs. These laboratories require precision quartzware, including customized reaction vessels, high-temperature combustion boats, and optical-grade quartz windows capable of enduring aggressive acid baths (HF, aqua regia) and extreme thermal shocks.
Our quartz boats are manufactured from Grade A fused silica, ensuring extreme chemical resistance, minimal thermal expansion, and unmatched purity.
SiO2 content > 99.995% with total trace element impurities (Fe, Al, Cu, Na, K, Li) below 20 ppm, preventing wafer contamination in sensitive high-temperature diffusion furnaces.
Near-zero coefficient of thermal expansion (5.5 × 10-7 /°C). Capable of enduring rapid temperature transitions from room temperature up to 1250°C without structural cracking or deformation.
Slot pitch and width machined with tolerances down to ±0.02 mm, preventing wafer chipping, binding, and mechanical stress during automated robotic cassette loading.
| Parameter | Value / Specification | Industrial Application Impact |
|---|---|---|
| Silica Purity (SiO2) | ≥ 99.995% | Prevents ionic impurity diffusion into active semiconductor junctions. |
| Continuous Working Temp | 1150 °C – 1200 °C | Standard high-temp annealing, oxidation, and boron/phosphorus doping. |
| Maximum Peak Temperature | 1400 °C (Short duration) | Withstands rapid thermal spike processing without glass deformation. |
| Thermal Expansion Coeff. | 5.5 × 10-7 cm/cm °C (20°C – 320°C) | Zero distortion during rapid insertion/pulling cycles in furnace tubes. |
| Wafer Compatibility | 2", 3", 4", 6", 8", and 12" wafers | Standard SEMI slotted profiles or custom multi-slot high-density designs. |
Quartz products have a wide range of applications, covering industries such as semiconductors, photovoltaics, optics, chemicals, and scientific research. Below are proven operational scenarios across Philippine and global manufacturing lines:
In semiconductor wafer fabrication, high-purity quartz boats are responsible for stably supporting silicon wafers, preventing damage and ensuring stable process flow; quartz tubes, as reaction chambers, provide a clean and sealed environment for high-temperature and corrosive processes.
In the photovoltaic field, high-purity quartz crucibles are the core containers for pulling single-crystal silicon rods, and can withstand high-temperature environments; quartz plates serve as light-transmitting components of photovoltaic modules, combining high light transmittance and stability to ensure photoelectric conversion efficiency.
In the field of optics, high-purity quartz sheets are precision-machined into optical windows with excellent light transmittance; quartz prisms, with their stable optical performance, are widely used in various precision instruments to ensure the accuracy of testing.
In chemical engineering and scientific research, quartz reactors and quartz beakers are commonly used equipment in high-temperature corrosion-resistant experiments. They possess both excellent thermal stability and corrosion resistance, providing reliable support for the precise conduct of experiments.
Explore our full range of manufactured quartz components available for rapid export dispatch to Manila, Cavite, Laguna, Cebu, and nationwide Philippine industrial zones.
Designed for heavy-duty oxidation chambers, diffusion furnaces, and chemical vapor deposition processes.
Fully customizable quartz boats, carrier racks, tanks, and scientific apparatus built to client drawings.
High-density, bubble-free plasma fused ingots used as premium feedstock for precision optical and semiconductor parts.
Precision ground and fire-polished quartz rods providing superior structural stability in ultra-clean processes.
Optical-grade fused silica plates with high UV-Vis transmission and robust thermal resistance for sight glass windows.
Precision thermal and dielectric isolation rings designed for plasma etching systems and vacuum chambers.
Flanged and sealed vacuum quartz bell jars engineered for semiconductor epitaxial growth and thin film deposition.
Acoustic resonance precision-crafted from high-purity optical quartz crystal for acoustic and therapeutic uses.
Streamlined supply chain logistics, direct engineering collaboration, and dedicated quality assurance for seamless PEZA economic zone procurement.
Expedited ocean and air freight solutions direct to Ninoy Aquino International Airport (MNL), Port of Manila (MICP), Batangas Container Terminal, and Mactan-Cebu International Airport.
Double vacuum polyethylene cleanroom bagging with custom high-density pearl cotton inserts and export-grade wooden crating to guarantee zero transit breakage.
Comprehensive export documentation including Certificate of Analysis (COA), material purity reports, and complete commercial invoicing compliant with PEZA zero-rated VAT processing.
Q: What wafer sizes can your quartz boats accommodate?
A: We design and fabricate horizontal and vertical quartz boats for standard 2", 3", 4", 6", 8", and 12" wafers. We also manufacture custom slotted designs matching non-standard wafer substrates (such as SiC, GaN, and Sapphire) and solar wafer dimensions (M6, M10, G12).
Q: How do you prevent contamination during shipment to Philippine cleanroom facilities?
A: Every quartz product undergoes ultrasonic ultra-pure deionized water cleaning, acid-leaching to remove surface trace metals, cleanroom drying, and multi-layer sealed vacuum packaging prior to shock-absorbing crating.
Q: Can we request custom modifications based on existing equipment drawings?
A: Yes. Our engineering team accepts standard CAD, STEP, and DWG files or can reverse-engineer sample parts to match your existing horizontal diffusion furnaces (ASM, TEL, Tempress, Bruce) and wet bench cleaning systems.