Aluminum Nitride Disc

Aluminum Nitride Disc

Product

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Aluminum Nitride Disc

Aluminum nitride disc is a type of ceramic disc made from aluminum nitride (AlN) material. Aluminum nitride is a high-performance ceramic material with excellent thermal conductivity, electrical insulation properties, and high mechanical strength. Aluminum nitride discs are often used in electronic applications where high thermal conductivity and electrical insulation are required.

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Product Description

Features & Benefits

  • High thermal conductivity
  • Excellent electrical insulation
  • High mechanical strength
  • Low thermal expansion coefficient
  • High temperature stability
  • Chemical resistance

Markets & Applications

  • Electronics industry: aluminum nitride discs are commonly used in electronic components such as substrates, power modules, and heat sinks due to their excellent thermal conductivity and electrical insulation properties.
  • Aerospace industry: aluminum nitride discs are also used in aerospace applications due to their high strength and high temperature stability.
  • Medical industry: aluminum nitride discs can be used in medical devices and implants due to their biocompatibility and chemical resistance properties.
  • Other industries: aluminum nitride discs can also be used in industries such as automotive, energy, and telecommunications for various applications that require high thermal conductivity and electrical insulation.
Property Index of ALN  Aluminum Nitride ceramics
Property Sort Characteristic Unit AN170 AN200 AN220
Basic Properties Appearance/color Gray Gray Beige
Water absorption % 0 0 0
Volume density g/cm3 ≥3.30 ≥3.30 ≥3.26
Surface roughness Ra μm 0.1~0.6 0.1~0.6 0.1~0.6
Camber (length ‰) ≤2‰ ≤2‰ ≤2‰
Thermal Properties Thermal conductivity  (20-30℃) W/m.k ≥170 ≥200 ≥220
Coefficient of
Thermal expansivity (20℃~300℃)
×10-6/℃ 4.4 4.6 4.5
Coefficient of
Thermal expansivity(40℃~800℃)
×10-6/℃ 5.2 5.2 5.2
Mechanical Properties Flexural/Bending strength MPa ≥420 ≥300 ≥200
Modulus of elasticity GPa 320 310 310
Moh''s hardness - 8 8 8
Electrical properties Dielectric constant  (1MHz 25℃) - 8.9 8.6 8.5
(1MHz 25℃) Dielectric loss ×10-4 2.8 2 2
Dielectric strength KV/mm ≥17 ≥16 ≥15
Volume resistivity Ω.cm ≥1014 ≥1014 ≥1013

 

Regular specification of AlN  Aluminum Nitride substrates/plate and Aluminum Nitride wafer
Thickness(mm) L*W( mm)
0.381

2″* 2″                            50.8mm*50.8mm

3″*3″                         76.2mm*76.2mm 4″* 4″           101.6mm*101.6mm 4.5″* 4.5″         114.3mm*114.3mm 127*127mm
138*190mm
0.5
0.635
1
1.5
Thickness(mm) Diameter(mm)
1

Φ16

Φ19

Φ20

Φ26

Φ30

Φ35

Φ40

Φ45

Φ50

Φ52

Φ60 Φ75 Φ80 Φ200
1.2
1.5
2
2.5
3
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Other dimension and thickness which not listed are available upon requests.