Product Details 1. Overview of Aluminum Nitride (AlN)
1.1 Definition and Formation
Aluminum Nitride (AlN) is a high-performance advanced structural and functional ceramic material. It is artificially synthesized through high-temperature reaction of high-purity aluminum powder and nitrogen gas. Different from natural minerals, AlN is a man-made inorganic ceramic with highly stable crystal structure and ultra-low impurity content.
Under high-temperature and high-pressure sintering conditions, aluminum atoms and nitrogen atoms form a dense hexagonal crystal lattice. The finished
AlN ceramic features tight grain combination, no internal pores, and excellent comprehensive physical and chemical stability. It is widely manufactured and applied in China, Japan, Germany and the United States for high-end industrial and semiconductor fields.
1.2 Classification and Grade Standards
According to sintering technology and purity, aluminum nitride ceramics are mainly divided into two categories: hot-pressed sintered AlN and pressureless sintered AlN.
Hot-pressed AlN is formed by high-temperature and high-pressure integral molding, with higher density, higher thermal conductivity and better air tightness, suitable for ultra-precision and high-end semiconductor components. Pressureless sintered AlN is added with trace high-purity sintering aids for densification, supporting complex shapes and large-size customization, which is widely used for industrial mass production.
High-grade AlN materials adopt deep purification treatment to reduce oxygen impurities and metal residues, meeting semiconductor-grade and vacuum ultra-high purity standards. With outstanding comprehensive performance and stable batch consistency, AlN has gradually replaced alumina and boron nitride ceramics and become the mainstream material for high-temperature electronic packaging and thermal management.
2. Core Product Features of AlN Ceramic Crucible
2.1 Exceptional Thermal Performance
AlN crucible boasts industry-leading thermal conductivity, far surpassing traditional ceramic crucibles made of alumina, zirconia and other common materials. It delivers uniform and rapid heat conduction throughout the heating process, effectively eliminating local overheating, avoiding partial scorching or structural damage of samples, and fully protecting experimental materials from thermal shock damage.
The maximum thermal conductivity of high-quality AlN crucible can reach 320W/m·K, realizing efficient and rapid heat dissipation and temperature balance. Meanwhile, it owns an ultra-low thermal expansion coefficient of4.5×10⁻⁶/°C, which is highly compatible with mainstream semiconductor materials such as silicon and gallium arsenide. The matching thermal performance greatly reduces thermal stress during rapid heating and cooling cycles, ensuring stable structural integrity.
2.2 Superior Mechanical Strength & Durability
AlN ceramic crucible possesses excellent mechanical rigidity and bending resistance, with a high flexural strength of 350 MPa. It maintains stable mechanical performance under extreme high-temperature, vacuum and high-pressure working conditions, resisting deformation, cracking and wear.
Compared with fragile traditional ceramic products, its outstanding structural strength adapts to high-strength and high-rigidity industrial application scenarios. It also features superior wear resistance and cutting resistance, extending the service life of the crucible in long-term repeated high-temperature operation and meeting the rigorous durability requirements of industrial continuous production and scientific research experiments.
2.3 Outstanding Chemical Stability
AlN ceramic exhibits ultra-stable chemical inertness at high temperatures, hardly reacting with most common metals including Al, Fe, Cu, as well as semiconductor materials, optical glass and other inorganic materials. It will not produce chemical precipitation or impurity dissolution, completely avoiding sample secondary contamination and ensuring the high purity of molten and sintered products.
The material is resistant to most conventional acid and alkali corrosion (except hydrofluoric acid), and has excellent stability against various organic solvents and chemical reagents. In addition, AlN crucible features non-magnetic and rust-free properties, free from the interference of external magnetic fields and humid environments, maintaining stable performance in complex experimental and industrial environments.
2.4 Excellent Electrical Insulation Performance
As a high-quality insulating ceramic material, AlN owns ultra-high volume resistivity and extremely low dielectric loss. It can maintain stable and reliable electrical insulation performance under long-term high-temperature, high-voltage and vacuum environments.
It effectively prevents electric leakage, short circuit and electromagnetic interference during electric heating experiments and semiconductor processing, which cannot be achieved by conductive ceramic materials such as silicon carbide. It is fully applicable to high-precision electronic devices and high-voltage thermal processing scenarios that require strict insulation performance.
2.5 Superior High-Temperature Resistance
AlN crucible has remarkable high-temperature resistance and structural stability. Its long-term stable operating temperature can reachabove 1800°C under vacuum or inert atmosphere (nitrogen, argon environment).
It can maintain complete structural integrity and stable physical and chemical properties in ultra-high temperature environments, without softening, deformation or performance attenuation. It fully meets the process requirements of high-temperature sintering, metal smelting, material synthesis and high-temperature annealing in industrial production and laboratory scientific research.
3.Technical Specifications
4. Main Application Fields
4.1 Semiconductor Industry
Widely used for high-temperature smelting, epitaxial growth and ion implantation annealing treatment of core semiconductor materials including silicon, gallium arsenide and silicon carbide. The high-purity and non-pollution characteristics of AlN crucible effectively avoid impurity doping, ensuring the high purity and electrical performance stability of semiconductor wafers and chips.
4.2 Electronic Ceramic Industry
Applied to the high-temperature sintering process of core electronic components such as multilayer ceramic capacitors (MLCC) and chip inductors. Its high thermal conductivity and excellent insulation performance optimize the sintering uniformity of electronic components, improve product yield, and enhance the heat dissipation and insulation reliability of finished electronic devices.
4.3 Scientific Research & High-Temperature Material Synthesis
Commonly adopted in universities and research institutes for high-temperature solid-state reaction experiments, vacuum smelting of metals and alloys, and high-temperature preparation of nanomaterials. It adapts to diverse high-precision and high-purity experimental environments, providing stable and reliable container conditions for new material research and development.
4.4 LED & Power Electronics Industry
Used for high-temperature heat treatment of LED chip substrate materials and sintering forming of ceramic substrates for power semiconductor module packaging. It solves the heat dissipation bottleneck of high-power electronic devices, reduces device operating temperature, and prolongs the service life of power electronics and optoelectronic products.
5. Service & Technical Support
5.1 Customized Processing Service
Support customized sizing, shape design and precision machining according to customers’ actual furnace equipment size, experimental process and production requirements, including cylindrical, square, boat-shaped, lidded and special-shaped AlN crucibles.
5.2 Strict Quality Assurance
All products undergo strict raw material screening, sintering process control and finished product testing, with complete material certification and performance test reports to ensure stable batch consistency and compliance with industrial and semiconductor-grade standards.
5.3 Professional After-Sales Support
Provide one-stop dedicated technical consultation, process guidance and full-cycle after-sales service, solving customer problems in product selection, use and maintenance in a timely manner.
6. Industry Development Prospects of AlN Ceramics
The global electronic industry is continuously developing towards miniaturization, high power density and high performance. Traditional ceramic materials such as alumina can no longer meet the stringent heat dissipation and insulation requirements of next-generation high-power, high-frequency electronic devices. As a new-type advanced ceramic with dual advantages of ultra-high thermal conductivity and superior electrical insulation, aluminum nitride (AlN) has become a core key material to break the industrial bottleneck.
In the field of power electronics, AlN ceramics are increasingly indispensable, serving as core substrates and heat sink materials for high-power semiconductor modules and LED devices. Its efficient heat dissipation performance significantly improves the operating stability and service life of high-power electronic equipment compared with traditional materials. In the aerospace and defense industry, AlN’s extreme environmental stability makes it widely used in RF microwave components and avionics systems.
Development History
Patents and certification
We’ve obtained various global certifications including CE, EMC, LVD, RoHS, FDA, MSDS, ISO 9001, SGS and TUV. We also own eight registered trademarks and forty technical patents to support independent R&D.
Our proprietary core technologies run through all product lines: porous ceramics, industrial ceramic components, special glass, metallized ceramics, liquid absorption cotton, ozone generators and silicone goods. All products are manufactured in strict accordance with international quality standards, delivering reliable and high-performance solutions that have gained wide recognition and market trust worldwide. 
Package
We adopt scientific and standardized packaging solutions tailored to product characteristics to effectively prevent collision, extrusion, dust and moisture damage. With mature global transportation system and strict shipment inspection procedures, we ensure all products remain intact and stable during long-distance delivery, providing customers with safe, efficient and reliable one-stop logistics service.
Services
Inquiry & Customization
We provide fast and accurate quotation response for all your inquiries. Flexible OEM & ODM customization solutions are available to meet your unique product design, packaging and branding requirements.
Order Quality Control
We keep clients updated with full production progress throughout the whole order cycle. Our QC team carries out strict comprehensive pre-shipment inspection to guarantee all goods comply with your quality standards before delivery.
Customs Document Support
We prepare a full set of standard export documents including commercial invoice, packing list, certificate of origin and other certification papers, to ensure smooth global customs clearance for shipments to all destinations worldwide.
One-Stop Logistics
Multiple shipping methods including sea freight, air freight and express delivery are offered to match your schedule and budget. We supply real-time cargo tracking service so you can monitor shipment status anytime.
Flexible Payment
We support a wide range of secure international payment terms such as T/T, L/C, Western Union and other mainstream cross-border settlement methods to reduce your cross-border transaction risks.
After-Sales Support
Our professional after-sales team offers timely technical and business support all year round. We maintain steady long-term stable supply capacity to fully back up your continuous market sales and project demands.
FAQ
01
Question: Can you produce based on customers’ drawings or physical samples?
Answer: Absolutely yes. We accept technical drawings in all mainstream file formats as well as actual physical samples. Before formal production, our engineering team will provide a full professional DFM feasibility evaluation for your reference.
02
Question: How long is the production lead time for custom orders?
Answer: Sample lead time: 3–7 working days. Custom mold lead time: 5–10 working days (we will confirm the cycle separately with you for complex molds). Mass production lead time: 7–20 working days, depending on product structure complexity and order quantity.
03
Question: What’s your minimum order quantity for custom products?
Answer: We provide flexible MOQ solutions for all customized items. We will try our best to set a low minimum order volume to support your small-batch trial orders, meanwhile we can handle stable mass production to satisfy your long-term bulk demands.
04
Question: What customization services can you provide?
Answer: We support comprehensive one-stop customization, including product size, shape, appearance, precision tolerance, surface treatment, hole grooving, bending, cutting and adjustable high-temperature resistant parameters. Custom engraved LOGO and exclusive customized packaging are also available as extra personalized options upon request.
05
Question: Do you accept third-party inspection of finished products?
Answer: Yes, we fully cooperate with all mainstream authorized third-party testing institutions. Well-known organizations such as SGS, BV and other internationally recognized inspection bodies are all acceptable. We can supply complete official inspection reports and material certification documents as you require.
06
Question: Can you customize raw material options for products?
Answer: Sure. We can select and match appropriate raw materials according to your application scenarios, working conditions and performance requirements, including alumina, zirconia, quartz, silicone and other special engineering materials, and adjust related performance parameters to meet your usage standards.
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