High precision slotted quartz plates are key foundational materials in the fields of semiconductors, photovoltaics, optics, and precision instruments. Their processing accuracy, surface quality, and dimensional stability directly determine the performance and yield of terminal equipment. As a professional quartz product customization manufacturer, we focus on providing high-precision slotted quartz plates with micrometer level tolerance control, solving customers' core problems in complex structural processing, high cleanliness requirements, and special size customization. Whether it's wafer loading in semiconductor manufacturing, precision positioning in optical systems, or corrosion-resistant vessels in laboratory environments, we can provide customers with a one-stop solution from design to mass production through advanced CNC machining technology and strict quality control, ensuring that every quartz plate can be perfectly adapted to your application scenario.

The core value and user demand of high-precision slotted quartz plates

In high-tech industries such as semiconductors, photovoltaics, and precision optics, the processing accuracy and material purity of quartz sheets have become key factors restricting production efficiency. Traditional processing methods often face three core challenges:

Dimensional tolerance out of control: It is difficult to control the tolerance within ± 0.05mm in ordinary machining, resulting in gaps or stress concentration during equipment assembly, which affects equipment stability.

Frequent surface defects: During the processing, microcracks, scratches, or edge breakage are prone to occur, which can become a source of particle contamination in semiconductor cleanroom environments and reduce wafer yield.

Complex structure processing bottleneck: For multi slot, irregular slot or deep slot structures, traditional processes are prone to problems such as non vertical slot walls and uneven slot bottoms, which cannot meet the requirements of precise positioning.

Our high-precision slotted quartz plate uses micrometer level processing technology to stably control the dimensional tolerance within ± 0.02mm and the surface roughness Ra ≤ 0.4 μ m, completely solving the above problems. Whether it is a quartz boat carrier used for photovoltaic diffusion furnaces or an electrode substrate in semiconductor etching equipment, it can ensure structural integrity under high temperature and strong corrosion environments, prolong equipment service life, and reduce maintenance costs.

From materials to craftsmanship

Our core competitiveness stems from a deep understanding of the characteristics of quartz materials and the combination of advanced processing techniques.

Micron level machining accuracy

Tolerance control: Using high-end CNC machining centers and laser measurement systems, we achieve micrometer level control (± 0.02mm) of key dimensions such as groove width, groove depth, and groove spacing, meeting the stringent requirements of semiconductor equipment for precision positioning.

Surface quality: Through precision grinding and polishing processes, the verticality of the groove wall is ensured to be ≥ 99.8%, the flatness of the groove bottom is ≤ 0.01mm, there are no micro cracks or broken edges, and particle contamination is avoided.

High purity material guarantee

Raw material purity: High quality and high-purity quartz sand from Donghai County is selected, with a silicon dioxide content of ≥ 99.99% and a metal impurity content of<5ppm, ensuring that the quartz plate does not crystallize or deform at high temperatures (1100 ℃).

Thermal stability: With a coefficient of thermal expansion as low as 0.55 × 10 ⁻⁶/℃, it can withstand rapid temperature changes from room temperature to 1200 ℃ and is suitable for high-temperature scenarios such as photovoltaic diffusion furnaces and semiconductor annealing equipment.

Customized service capability

Size range: Supports ultra large size processing from 10mm × 10mm to 1500mm × 800mm, with a thickness coverage of 0.5mm to 100mm, meeting the installation requirements of different equipment.

Groove design: It can process various groove types such as U-shaped groove, V-shaped groove, T-shaped groove, stepped groove, etc. The minimum groove width can reach 0.3mm, and the maximum groove depth can reach 50mm. It supports parallel processing of multiple groove positions.

Special treatment: Provide value-added services such as AR coating, ultra precision polishing, quartz metal sealing, etc., to expand the application scenarios of products in the fields of optics and semiconductors.

Application scenarios and problem solving

Our quartz plates have been widely used in multiple fields, helping customers solve key problems in actual production.

Semiconductor Manufacturing

Problem: The quartz substrate used in the etching process of a certain wafer factory has insufficient groove accuracy, resulting in wafer positioning deviation and a yield rate of 92%.

Solution: Customize a quartz substrate with a slot tolerance of ± 0.02mm, increase the verticality of the slot wall to 99.9%, and use ultra clean polishing technology to increase the wafer yield to 98.5%, reducing losses by over 5 million yuan annually.

photovoltaic industry

Problem: Photovoltaic companies use traditional quartz boat supports in diffusion furnaces, which cause uneven heating of silicon wafers due to high-temperature deformation, resulting in fluctuations in cell efficiency of ± 0.3%.

Solution: High purity quartz material is used to process the boat carrier, and internal stress is eliminated through annealing process. The product can be continuously used at 1100 ℃ for 1000 hours with a deformation of less than 0.1mm, and the stability of battery cell efficiency is improved to ± 0.1%.

optical instrument

Question: A certain research institution requires quartz window plates for ultraviolet spectroscopy analysis, with a transmittance of ≥ 99% @ 200-400nm and no scratches on the surface.

Solution: Provide double-sided polished quartz plates with Ra ≤ 0.2 μ m, and increase the transmittance to 99.5% through AR coating treatment to meet the requirements of precision optical experiments.

Customer Application Cases

Case 1: Materials Laboratory of a certain university

Requirement: Customize a set of quartz crucibles for high-temperature sintering experiments, with a complex spiral condensation structure and a temperature resistance of 1200 ℃.

Challenge: Previously, all three suppliers had to cancel orders due to complex structures and high tolerance requirements (± 0.05mm).

Solution process: The technical team simulated stress distribution through 3D modeling, using segmented processing and vacuum welding technology, and completed the sampling in 15 days. After testing, the crucible was used continuously for 200 hours at 1200 ℃ without deformation, successfully assisting the laboratory in completing the sintering experiment of new ceramic materials.

Case 2: A New Energy Photovoltaic Enterprise

Requirement: Bulk purchase of quartz crucibles for monocrystalline silicon growth furnaces, with a required service life of ≥ 300 hours and impurity content<3ppm.

Solution: The crucible is produced using a continuous melting process, and the smoothness of the inner wall is controlled by an AI visual inspection system, extending the product's service life to 400 hours and reducing the average annual procurement cost by 25%.

Case 3: A Semiconductor Equipment Manufacturer

Requirement: Customized quartz electrode substrate for etching equipment, requiring the processing of 200 micropores (with a diameter of 0.5mm and a spacing of 1mm) without any microcracks.

Solution: Adopting laser drilling and precision grinding technology, the hole position accuracy is controlled within ± 0.01mm, and the surface roughness Ra is ≤ 0.3 μ m. The product has passed SEMI standard testing and has been widely used in its high-end etching equipment.

Why choose us

Advantages of Source Factory: Relying on the quartz mineral resources of Donghai County, the entire process from raw material purification to finished product processing is independently controllable, with costs 15% -20% lower than those of traders.

Technical team strength: More than 20 technical personnel with over 20 years of quartz processing experience can quickly respond to customers' customized needs, with a minimum sampling cycle of 3 days.

Global Services: Support technical integration between Chinese and English, export products to countries such as the United States, Germany, and Japan, and provide DHL/FedEx fast logistics services.

We can provide you with professional solutions for both standard sizes and special structures. Just provide the drawings or parameter requirements, and our technical team will provide you with a quotation and processing plan within 24 hours.

Luverre Quartz manufactures and sells a wide range of high quality quartz glass, including quartz tubes, quartz plates, quartz rods, quartz windows, quartz crucibles, quartz boats, quartz flanges, quartz beakers, quartz glass instruments, and more. We can meet all kinds of customized requirements for quartz glass products.