Overview of High Purity Aluminum Nitride Ceramic Sheet

High Purity Aluminum Nitride Ceramic Sheet is an advanced technical ceramic renowned for its exceptional thermal conductivity and reliable electrical insulation. It is a key material in high-power electronics, LED lighting, and semiconductor processing, effectively managing heat in demanding applications where performance and reliability are critical.

Features of High Purity Aluminum Nitride Ceramic Sheet

• High Thermal Conductivity: Offers excellent heat dissipation, comparable to beryllia (BeO).
• Electrical Insulation: Maintains high electrical resistivity even at elevated temperatures.
• Low Thermal Expansion: Matches the coefficient of thermal expansion of silicon, ideal for semiconductor substrates.
• Excellent Mechanical Strength: Possesses good mechanical properties for structural integrity.
• High-Temperature Stability: Performs reliably in harsh environments and at high temperatures.
• Non-Toxic: A safe alternative to beryllium oxide (BeO) ceramics.

Specification of High Purity Aluminum Nitride Ceramic Sheet

This high purity aluminum nitride ceramic sheet offers top performance in demanding electronics. It handles heat exceptionally well. This material carries heat away fast. Thermal conductivity reaches 170 W/mK or higher. This prevents dangerous hot spots. It stops electricity completely. Electrical insulation is very high. This keeps circuits safe. It stays stable across wide temperature changes. Thermal expansion closely matches silicon chips. This reduces stress during heating and cooling cycles. Bonding to silicon wafers becomes easier and more reliable.

Purity is critical. This ceramic sheet has over 99% aluminum nitride content. Impurity levels are kept extremely low. Oxygen and metallic impurities are minimized. High purity ensures consistent thermal performance. It also improves corrosion resistance. This material withstands harsh chemical environments. It resists plasma erosion effectively. This is vital for semiconductor processing tools.

The sheet is very strong and hard. It provides good mechanical support. It doesn’t wear out easily. Surface finish options are available. You can get very smooth surfaces. Roughness can be below 0.2 microns. Precise dimensions are standard. Tight thickness tolerances are met. Flatness is excellent. Custom sizes and shapes are possible. Typical thickness ranges from 0.25mm to several millimeters. Larger sizes are achievable.

This material is ideal for substrates in power electronics. It works well for LED packaging. It serves as a heat spreader in laser diodes. It functions effectively in semiconductor manufacturing equipment parts. It acts as a critical insulator in high-voltage, high-power modules needing superior heat removal and electrical safety.

Applications of High Purity Aluminum Nitride Ceramic Sheet

High purity aluminum nitride ceramic sheets are special materials. They are very hard and handle heat extremely well. This combination makes them valuable for demanding jobs. Their most famous feature is moving heat away quickly. They are almost as good as copper at this. But unlike copper, they stop electricity completely. This matters a lot in electronics.

Semiconductor makers need these sheets. They build chips that get very hot. The aluminum nitride sheets act like super-efficient heat sinks. They pull heat away from sensitive parts fast. This stops the chips from breaking. It also lets the chips run faster and last longer. Factories making these chips use aluminum nitride too. It lines parts inside machines that process wafers. The sheets handle the intense heat and harsh chemicals inside those machines without breaking down.

LED lights get hot. Bright LEDs need good cooling. Aluminum nitride sheets work well here. They form the base layer inside high-power LED packages. The sheets move heat away from the light-emitting part. This keeps the LED bright and stops it from failing early. It also allows designers to make brighter, smaller lights.

Power electronics are another big area. Think about things like electric car chargers or power supplies. Devices here handle lots of electricity and generate heat. Aluminum nitride sheets provide electrical insulation. They also move the heat effectively. This makes the whole power system more reliable and compact. You find them in modules controlling motors and converting power.

Aerospace companies use these ceramics. Electronics on planes and satellites face extreme conditions. Aluminum nitride sheets protect sensitive electronics from heat and vibration. They are light and strong, which is critical for flying. Medical scanners like MRI machines also use them. The sheets manage heat in powerful magnets and radio frequency parts. They don’t interfere with the machine’s signals. Phone network base stations rely on them too. They cool the high-frequency amplifiers sending signals. This keeps the network running smoothly.

Company Profile

Tanki New Materials Co.Ltd. focus on the research and development, production and sales of ceramic products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2015, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Aerogel, Aluminum Nitride, Aluminum Oxide, Boron Carbide, Boron Nitride, Ceramic Crucible, Ceramic Fiber, Quartz Product, Refractory Material, Silicon Carbide, Silicon Nitride, ect. please feel free to contact us.

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of High Purity Aluminum Nitride Ceramic Sheet

Here are 5 common questions about our High Purity Aluminum Nitride Ceramic Sheets:

What makes aluminum nitride ceramic special?
Its main advantage is moving heat very well. It moves heat almost like some metals do. This is much better than most other ceramics. It keeps electrical parts cool effectively.

Can I machine or cut this ceramic sheet myself?
Yes, you can machine it. You need diamond tools. Standard metalworking tools are not hard enough. They wear out too fast. Diamond grinding or cutting works best. Handle the sheet carefully. It is strong but can chip if hit hard.

How hot can this ceramic sheet get?
It handles very high temperatures well. It works fine in air up to about 1300°C. In controlled atmospheres without oxygen, it withstands even higher heat. This makes it good for demanding furnace parts.

Does it conduct electricity?
No, it does not. Aluminum nitride is an excellent electrical insulator. You can use it safely where electricity is present. Its high heat movement and electrical insulation are a powerful combination for electronics.

What surface finishes are possible?
We offer different finishes. The standard is a smooth, fine-ground surface. This is good for most bonding and heat transfer needs. We can also provide a polished finish for very smooth contact. Tell us your specific requirement. We can usually meet it.