High Thermal Conductivity Aluminum Nitride Ain Ceramic Electronic Parts Components

high thermal conductivity aluminum nitride AIN ceramic electronic parts components
Reputation depends on quality,  quality comes from Hard.

Aluminum Nitride Ceramics:
Aluminum nitride, a covalent bond compound, is an atomic crystal belonging to a diamond-like nitride, a hexagonal system, a wurtzite crystal structure, non-toxic, white or grayish white. The AIN crystal is a covalently bonded compound with a [AIN4] tetrahedron as a structural unit, and has a wurtzite structure and is a hexagonal system. Chemical composition AI 65.81%, N 34.19%, specific gravity 3.261g/cm3, white or off-white, single crystal colorless and transparent, sublimation decomposition temperature under normal pressure is 2450 °C. It is a high temperature heat resistant material. Thermal expansion coefficient (4.0-6.0) X10-6/°C. Polycrystalline AIN has a thermal conductivity of 260 W/(m.k), which is 5-8 times higher than alumina, so it has good thermal shock resistance and can withstand extreme heat of 2200 °C. In addition, aluminum nitride is not attacked by aluminum liquid and other molten metals and gallium arsenide, and particularly has excellent corrosion resistance to molten aluminum liquid.

Aluminum Nitride Ceramics properties:
(1) high thermal conductivity (about 170-186W / m · K), close to BeO and SiC, more than 5 times that of Al2O3;
(2) The coefficient of thermal expansion (4.5 × 10 -6 ° C) is matched with Si (3.5 ~ 4 × 10 -6 ° C) and GaAs (6 × 10 -6 ° C);
(3) excellent electrical properties (dielectric constant, dielectric loss, volume resistivity, dielectric strength);
(4) good mechanical properties, higher flexural strength than Al2O3 and BeO ceramics, can be sintered at normal pressure;
(5) high purity;
(6) good optical transmission characteristics;
(7) non-toxic;
(8) It can be produced by a casting process. It is a promising high-power integrated circuit substrate and packaging material.

Data Sheet↓

Properties of Aluminum Nitride Ceramics
Item	Unit	Typical Values
Physical Properties
Color	White Grey
Density	g/cm3	3.3-3.4
Chemical Formula	/	AIN
Gas permeability	0
Water Absorption	0
Mechanical Properties
Moh's Hardness		5
Vickers hardness	Gpa	11
Fracture Toughness KIC	MPa•m1/2	2.6
Flexural Strength	Mpa	466-496
Compressive Strength	Mpa(lb/in2x103)	2100
Modulus of Elasticity(25°C)	Gpa	320
Thermal Properties
Thermal Conductivity	W/m·K	170-186
Thermal Expansion Coefficient	10-6/ºC	3.2-3.4
Thermal Shock Resistance	T (ºC)	400
Specific Heat(25°C)	J/kg.K	720
Maximum Use Temperature	°C	2000
Electronic Properties
Dielectric Strength	KV/mm	17-19
Dielectric Constant	Er	8.8
Dielectric Loss Angle	1 MHz (×10-3)	0.3
Volume Resistivity(400~600ºC)	Ω.cm	2.75*1014

Application :
1. Aluminum nitride powder has high purity, small particle size and high activity, and is the main raw material for manufacturing high thermal conductivity aluminum nitride ceramic substrate.
2, aluminum nitride ceramic substrate, high thermal conductivity, low expansion coefficient, high strength, high temperature resistance, chemical corrosion resistance, high resistivity, small dielectric loss, is an ideal large-scale integrated circuit heat sink substrate and packaging materials.
3. Aluminum nitride has high hardness and exceeds traditional alumina. It is a new type of wear-resistant ceramic material, but it can only be used for severely worn parts due to its high cost.
4. Using AIN ceramics for heat resistance, melt erosion and thermal shock resistance, GaAs crystal crucible, Al evaporating dish, magnetic fluid power generation device and high temperature turbine corrosion resistant parts can be fabricated, and its optical properties can be used as an infrared window. The aluminum nitride film can be made into a high frequency piezoelectric element, a very large scale integrated circuit substrate, or the like.
5, aluminum nitride heat-resistant, resistant to molten metal erosion, stable to acid, but easy to be eroded in alkaline solution. The AIN fresh surface is exposed to moist air and reacts to form a very thin oxide film. By utilizing this property, it can be used as a crucible and a die-casting mold material for smelting metals such as aluminum, copper, silver, and lead. AIN ceramics have good metallization properties and can be widely used in the electronics industry as an alternative to toxic cerium oxide.

Aluminum nitride ceramic ceramics are used in ceramic integrated heat-dissipating materials, such as hybrid integrated circuits, sensors, chip capacitors, chip sensors, laser carriers, power dividers, interdigital capacitors and spiral inductors, and aluminum nitride ceramic sheets. With high thermal conductivity and high temperature resistance, good electrical insulation and chemical stability, low dielectric constant and thermal expansion coefficient, it is an ideal packaging material and heat dissipation material for large-scale integrated circuits, semiconductor module circuits and high-power devices. , circuit components and interconnect carriers.

Company Information

Shenzhen Hard Precision Ceramic CO.,Ltd founded in 2007, located in Shenzhen of China. 
We are a company that integrates development, design, molding, sintering, production and sales of precision ceramic products. After 10 years of development, we have cooperated with more than 2000 customers and 60 universities; Our factory covers an area of 2000 square meters, 50 employees, and annual production value of nearly 20 million. We have a higher visibility and better reputation in the same industry.Our products include ceramic rods, tubes, plates, blocks and precision parts for industrial. We have all-line high precision equipments from ceramic forming, sintering to precision machining. Hope for a wide range of sincere cooperation with customers at home and abroad.
 

Why Choose Us?

1.12 years of professional production industrial ceramics factory
2.High quality products with low price
3.High precision parts with lowest tolerance
4.Short time for production 
5.Has a group of experienced, professional and efficient R&D team
6.Has a good reputation in China and abroad.
7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
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