2500mm long quartz diffusion tube

The 2500mm quartz diffusion tube is a core high-temperature consumable specially designed for large-scale industrial production lines and high-end research equipment. This product is made of 99.9% or higher pure quartz material, featuring outstanding high-temperature resistance, thermal shock resistance, and extremely low thermal expansion coefficient. Its 2.5-meter ultra-long specification perfectly fits the diffusion, oxidation, and CVD deposition processes for large-sized wafers, ensuring uniformity of the thermal field and process stability. It is an indispensable key basic material in the semiconductor and photovoltaic fields.

FAQ

Q1: What standards can be achieved for the purity and hydroxyl content of the 2500mm quartz diffusion tube?

A: We use advanced melt-in-fusion and electrofusion processes to ensure that the silicon dioxide content is ≥ 99.9% and there are extremely low metal impurities. At the same time, the hydroxyl (OH-) content can be precisely controlled at 20 ppm, 10 ppm, or even 5 ppm according to your specific process requirements, meeting the strict standards of semiconductor grade.

Q2: How can the 2500mm ultra-long quartz tube be ensured not to deform or crack during transportation and installation?

A: Before leaving the factory, we will conduct strict stress elimination and annealing treatment, and use custom high-strength shock-proof wooden boxes for packaging. The product size tolerance is controlled within ±0.05mm, and the wall thickness uniformity is extremely high, ensuring that it does not deform or crystallize during long-term operation at 1100℃ high-temperature conditions.

Q3: Besides the standard length of 2500mm, do you support other non-standard custom specifications?

A: Absolutely. We offer full-size customization services ranging from an outer diameter of 2mm to 300mm and a length of 20mm to 3000mm. Whether it's a burn-off port, expansion port, flange connection, or complex bending molding, we can provide one-stop deep processing services according to your drawings.

User Requirements and Value Realization

In high-end manufacturing and research, users often encounter problems such as material deformation under high-temperature conditions, impurity contamination leading to reduced yield, and the inability to match non-standard sizes with equipment. The 2500mm quartz diffusion tube, with its extremely high thermal stability and chemical inertness, effectively solves the problems of uneven heat field and short lifespan in high-temperature furnace tubes; its ultra-high purity avoids the contamination of metal ions to wafers or single-crystal silicon; and its flexible customization capability completely breaks the limitation of relying on large equipment consumables, significantly reducing the procurement costs and downtime for enterprises.

Advantages and Application Value

As a key component in the semiconductor and photovoltaic industry chain, the 2500mm length quartz diffusion tube plays a decisive role in core processes such as diffusion, oxidation, CVD deposition, and annealing treatment.

1. Outstanding Physical and Chemical Properties

The product has a melting point of up to 1732℃ and excellent thermal shock resistance. It can operate stably for a long time at 1100℃, with a service life that is over 30% longer than that of ordinary quartz tubes. Its extremely low metal impurity content ensures the purity of monocrystalline silicon and the yield of semiconductor devices from the very beginning.

2. Excellent Dimensional Accuracy and Thermal Uniformity

Based on the dual system of numerical control cold processing and precise glass turning processing, the product's dimensional tolerance can reach ±0.05mm. The 2500mm ultra-long tube body can still maintain excellent geometric dimensional stability and thermal uniformity at high temperatures, ensuring that the heating of the entire batch of wafers or silicon wafers is consistent, significantly improving the photoelectric conversion efficiency and chip manufacturing yield.

3. Full Specification Customization Services

We break the limitations of standard parts and provide comprehensive customization. Besides 2500mm, we can also provide quartz diffusion tubes with different outer diameters, wall thicknesses, opening angles, and flange matching according to the customer's equipment chamber requirements. We support complex secondary processing such as cutting, sanding, welding, and blowing, to meet the strict requirements of various non-standard equipment.

Typical Application Case Analysis

Case: Upgrade Project of Monocrystalline Silicon Diffusion Furnace Tube for a Leading Photovoltaic Enterprise

Application Challenges: A large-scale photovoltaic enterprise expanded the production capacity of N-type high-efficiency batteries and introduced a new type of large-sized diffusion furnace. However, the 2000mm quartz diffusion tube provided by the original supplier was prone to micro deformation and local crystallization under continuous high-temperature operation, resulting in fluctuations in the temperature field inside the furnace, making it difficult to meet the uniformity requirements of the monocrystalline silicon wafers, and frequent furnace shutdowns and replacements seriously slowed down the production progress.

Solution and Results: To address this technical bottleneck, we developed a 2500mm long, 150mm outer diameter high-purity quartz diffusion tube specifically for this enterprise. Through optimizing the continuous melting process, we reduced the hydroxyl content in the tube body to below 5ppm, and adopted precise annealing technology to completely eliminate internal stress. In actual production line tests, this 2500mm diffusion tube operated stably at 1100℃ for over 2000 hours without any deformation or crystallization. The thermal field uniformity inside the furnace improved by 15%, the photoelectric conversion efficiency of the monocrystalline silicon wafers significantly increased, and the frequency of consumable replacements was reduced by 40%, bringing significant economic benefits and production capacity improvement to the enterprise.

Why choose us?

As a source manufacturer, we have a complete production system covering the entire process from quartz glass melting, cold processing to hot processing. We not only have the capability to process quartz tubes with sizes up to 2500mm and even 3000mm, but also possess a perfect quality control system and a rapid response mechanism. Whether it is the high-purity requirements for semiconductor grade or the large-scale demands for photovoltaic grade, we can provide you with high-quality customized quartz product solutions at more competitive prices and shorter delivery cycles.

If you are looking for a reliable supplier of quartz products, or have a custom requirement for special specifications of quartz diffusion tubes, please feel free to contact us at any time to obtain exclusive quotations and technical solutions!

Luverre Quartz is a manufacturer specializing in quartz tubes and other quartz items.We have over 18 years experience with the production of quartz tubes, we will be your reliable partner on quartz tubes and other quartz items.

Luverre Quartz can manufacture customized quartz tubes in various shapes, such as spiral, square, round, with processing including cutting, bending, welding, etc., and available in different colors, such as transparent quartz tubes, opaque quartz tubes, milky white quartz tubes, red quartz tubes, and so on.