What purity level does Southeast Quartz's semiconductor-grade quartz boat achieve and why does it matter for 7nm chip manufacturing?

Southeast Quartz's independently developed semiconductor-grade quartz boat achieves a purity of 99.999% (5N grade) with a thermal expansion coefficient as low as 5.5×10⁻⁷℃. This extreme purity prevents metal ion precipitation during wafer processing meeting the stringent cleanliness requirements of 7nm and below advanced process nodes. The inner wall roughness of Ra≤0.2μm effectively eliminates wafer contamination risks that could otherwise reduce chip yield rates. With a monthly production capacity of 5000 pieces and an expected annual output value exceeding 30 million yuan Southeast Quartz provides a reliable domestic alternative to imported high-end quartz consumables.

How does Southeast Quartz ensure the mechanical reliability of its quartz boats during high-temperature semiconductor diffusion processes?

Southeast Quartz manufactured its semiconductor quartz boats from high-purity fused quartz raw materials sourced from Donghai County's premium quartz ore deposits. The product withstands continuous operation at 1200°C and resists severe thermal shock cycling without structural deformation. A dedicated R&D team spent 18 months developing three core technologies—high-purity raw material purification precision molding and stress-free polishing—to ensure zero metal impurity precipitation during wafer annealing and diffusion. Each batch undergoes helium mass spectrometry leak detection and comprehensive purity testing before shipment.

What quality certifications and inspection reports does Southeast Quartz provide with its semiconductor quartz boats?

Southeast Quartz provides a complete compliance documentation package with every semiconductor quartz boat shipment including GDMS impurity analysis reports thermal shock test reports dimensional inspection certificates and material purity certifications. The company's ISO 9001 certified quality management system ensures full traceability from raw quartz ore in Donghai County through precision CNC machining to finished product. For semiconductor customers requiring third-party verification Southeast Quartz facilitates independent laboratory testing to meet stringent fab qualification requirements for advanced process consumables.

What is Southeast Quartz's production capacity for semiconductor quartz boats and what lead times can B2B buyers expect?

Southeast Quartz's dedicated semiconductor-grade production line achieves a monthly output of 5000 quartz boat units with an annual output value exceeding 30 million yuan. For standard specifications the company can schedule production on the day of order confirmation. Custom configurations based on client equipment parameters follow a structured workflow: engineering drawing assessment within 24 hours prototype delivery within 7 days and batch production completion within 15-20 days. Southeast Quartz maintains a standing safety stock of common specifications for 48-hour shipment on repeat orders.

How does Southeast Quartz's quartz boat technology compare with imported alternatives from European and Japanese suppliers?

Southeast Quartz's semiconductor quartz boats have successfully broken the long-term monopoly of foreign brands in the high-end quartz consumables segment. The product achieves equivalent purity levels (5N99.999%) and surface quality (Ra≤0.2μm) to established European and Japanese manufacturers while offering a 30%+ cost-performance advantage. Domestic semiconductor fabs have already placed volume orders after successful batch verification testing. Industry experts have recognized this technological achievement as a significant milestone in China's independent innovation within the semiconductor new materials sector marking a crucial step toward supply chain self-reliance.

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Technological breakthrough! Southeast Quartz has successfully developed semiconductor-grade high-purity quartz boats, filling the gap in domestic high-end consumables

2026-01-26

Recently, Lianyungang Southeast Quartz Products Co., Ltd. (hereinafter referred to as "Southeast Quartz") announced that its independently developed semiconductor-grade high-purity quartz boat has successfully passed customer batch verification and officially entered mass production. With a purity of 99.999% (5N grade) and a thermal expansion coefficient as low as 5.5×10⁻⁷/℃, the product can withstand high temperatures of 1200℃ and severe thermal shock, performing excellently in semiconductor wafer annealing and diffusion processes. It has successfully broken the long-term monopoly of foreign brands in the field of high-end quartz boats, adding key support for the independent control of the domestic semiconductor industry chain.

As an enterprise deeply engaged in the field of quartz products for many years, Southeast Quartz relies on the high-quality quartz ore resources and mature deep-processing technology in Donghai County, established a special R&D team, and spent 18 months overcoming three core technical problems: "high-purity raw material purification, precision molding, and stress-free polishing". The inner wall roughness of the new product is Ra≤0.2μm, no metal impurities are precipitated, which can effectively avoid wafer contamination and meet the requirements of advanced processes of 7nm and below. At present, the product has obtained orders from many leading domestic semiconductor enterprises, with a monthly production capacity of 5,000 pieces and an expected annual output value of over 30 million yuan.

The general manager of Southeast Quartz said: "High-end quartz consumables are the 'bottleneck' link in semiconductor manufacturing. We will continue to increase R&D investment, focus on photovoltaic, semiconductor, aerospace and other fields, create more domestic alternative products, and help the high-quality development of China's high-end manufacturing."

Industry experts note that Southeast Quartz's technological breakthrough represents a significant achievement in independent innovation within China's new materials sector, marking a crucial step forward in the nation's advancement toward high-end semiconductor consumables. As the pace of domestic substitution accelerates, China's semiconductor supply chain will continue to enhance its self-reliance and control capabilities, securing a more pivotal position within the global semiconductor industry landscape.