High-Purity Graphite Boat: Core Consumables for Semiconductor & PV Manufacturing

Sep 16, 2026

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Hydrogen Production Electrolyzer Graphite Electrode Plates

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Suggested Image: Finished graphite boat close-up + semiconductor workshop loading and working scene

High-purity graphite boats are indispensable high-temperature precision consumables in modern semiconductor and photovoltaic industries. Made from ultra-low ash fine-grain graphite materials, the products feature ultra-high purity, uniform density, excellent high-temperature oxidation resistance and stable chemical inertness. Under continuous high-temperature vacuum and inert gas environment, the graphite boat will not deform, volatilize or pollute the workpiece, which greatly improves the yield rate of wafer processing.

Core Product Performance Data Table

Performance Item

Technical Standard

Graphite Purity

≥99.99% (4N High Purity)

Ash Content

≤50ppm

Bulk Density

≥1.88 g/cm³

Compressive Strength

≥65 MPa

Maximum Working Temperature

2300℃ (Inert Atmosphere)

Processing Tolerance

±0.02mm Precision Customization

Main Application Scenarios (2026 Latest Industry Uses)

1. Semiconductor Wafer Coating & Annealing The semiconductor industry demands ultra-clean processing environments to avoid chip failure and low yield rates, and ordinary refractory materials are prone to ash precipitation and metal contamination at high temperatures. Our high-purity graphite boats, with 99.99% ultra-high purity and ultra-low ash characteristics, perfectly solve this industry pain point. They are specially applied to hold silicon wafers, germanium wafers and compound semiconductor wafers during PECVD film coating, LPCVD deposition and high-temperature annealing processes. The material features stable chemical inertness and uniform heat conduction, ensuring consistent wafer heating and zero impurity precipitation. It is widely matched with the production of high-precision 5G communication chips, automotive-grade electronic chips, industrial sensor chips and aerospace semiconductor components, effectively improving chip finished product quality and production stability.

PEM Graphite Bipolar Plate

2. Photovoltaic Monocrystalline & Polycrystalline Silicon Processing With the continuous upgrading of the global photovoltaic industry's large-size silicon wafer and high-efficiency cell technology, traditional carrier materials are easy to deform and oxidize under long-term high-temperature diffusion and texturing processes, resulting in wafer scrappage. Our precision graphite boats adopt fine-grain uniform density technology, with excellent high-temperature oxidation resistance and structural stability. They are dedicated to carrying 182mm/210mm large-size monocrystalline and polycrystalline silicon wafers in PV high-temperature production links. The stable thermal performance ensures uniform surface treatment of silicon wafers, significantly improves the photoelectric conversion efficiency of PV modules, reduces production loss and defective rate, and is a standard high-performance consumable adopted by mainstream photovoltaic manufacturing enterprises in Europe, Southeast Asia and other global markets.

3. New Energy Electronic Component Sintering High-precision new energy electronic components have extremely strict requirements on sintering temperature uniformity and environmental cleanliness. Uneven heating will lead to component deformation and performance inconsistency in batch production. Our high-purity graphite boats are widely used in the high-temperature sintering and forming process of ceramic dielectric components, multilayer capacitor chips, lithium battery precision structural parts and power electronic components. The excellent and stable thermal conductivity of graphite realizes overall uniform heating of workpieces in high-temperature furnace environments, avoids local overheating or insufficient temperature, ensures consistent performance of each batch of electronic components, and supports mass standardized production for new energy and power electronics industries.

Vacuum-fired Graphite Tray For Stone Processing

Company Strength & Service Advantages

JC Graphite (Official Website: www.graphitejc.com) is a professional manufacturer of high-purity semiconductor and photovoltaic graphite parts. We focus on R&D and precision CNC processing of high-end graphite consumables, strictly controlling raw material purification, high-temperature graphitization and fine machining processes. All graphite boats support personalized customization according to customer drawings and size requirements, and can provide third-party COA purity test reports.

Our products are exported to Europe, Southeast Asia, the Middle East and other regions, serving semiconductor factories, PV manufacturers and new energy precision processing enterprises. We support small-batch trial orders and large-scale mass production, with stable delivery and perfect after-sales service.

Contact Us: Wang Pengqi | Email: graphite.jc@gmail.com

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